diff --git a/importPicture/src/osm/jp/gpx/ImportPicture.java b/importPicture/src/osm/jp/gpx/ImportPicture.java
index ef2b2fd..5586322 100644
--- a/importPicture/src/osm/jp/gpx/ImportPicture.java
+++ b/importPicture/src/osm/jp/gpx/ImportPicture.java
@@ -1,6 +1,8 @@
 package osm.jp.gpx;
 
 import java.io.*;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.nio.channels.FileChannel;
 import java.text.DateFormat;
 import java.text.DecimalFormat;
@@ -577,14 +579,15 @@
                     gpsDir.removeField(GpsTagConstants.GPS_TAG_GPS_LATITUDE_REF);
                     gpsDir.add(GpsTagConstants.GPS_TAG_GPS_LATITUDE_REF, latitudeRef);
                     {
-                        double value = longitude;
-                        final double longitudeDegrees = (long) value;
-                        value %= 1;
-                        value *= 60.0;
-                        final double longitudeMinutes = (long) value;
-                        value %= 1;
-                        value *= 60.0;
-                        final double longitudeSeconds = value;
+                        BigDecimal value = BigDecimal.valueOf(longitude);
+                        
+                        final double longitudeDegrees = (value.setScale(0, RoundingMode.DOWN)).doubleValue();
+                        value = value.subtract(BigDecimal.valueOf(longitudeDegrees));
+                        value = value.multiply(BigDecimal.valueOf(60));
+                        final double longitudeMinutes = (value.setScale(0, RoundingMode.DOWN)).doubleValue();
+                        value = value.subtract(BigDecimal.valueOf(longitudeMinutes));
+                        value = value.multiply(BigDecimal.valueOf(60));
+                        final double longitudeSeconds = (value.setScale(0, RoundingMode.DOWN)).doubleValue();
                         gpsDir.removeField(GpsTagConstants.GPS_TAG_GPS_LONGITUDE);
                         gpsDir.add(GpsTagConstants.GPS_TAG_GPS_LONGITUDE,
                                 RationalNumber.valueOf(longitudeDegrees),
@@ -592,15 +595,14 @@
                                 RationalNumber.valueOf(longitudeSeconds));
                     }
                     {
-                        double value = latitude;
-                        final double latitudeDegrees = (long) value;
-                        value %= 1;
-                        value *= 60.0;
-                        final double latitudeMinutes = (long) value;
-                        value %= 1;
-                        value *= 60.0;
-                        final double latitudeSeconds = value;
-                        gpsDir.removeField(GpsTagConstants.GPS_TAG_GPS_LATITUDE);
+                        BigDecimal value = BigDecimal.valueOf(latitude);
+                        final double latitudeDegrees = (value.setScale(0, RoundingMode.DOWN)).doubleValue();
+                        value = value.subtract(BigDecimal.valueOf(latitudeDegrees));
+                        value = value.multiply(BigDecimal.valueOf(60));
+                        final double latitudeMinutes = (value.setScale(0, RoundingMode.DOWN)).doubleValue();
+                        value = value.subtract(BigDecimal.valueOf(latitudeMinutes));
+                        value = value.multiply(BigDecimal.valueOf(60));
+                        final double latitudeSeconds = (value.setScale(0, RoundingMode.DOWN)).doubleValue();                        gpsDir.removeField(GpsTagConstants.GPS_TAG_GPS_LATITUDE);
                         gpsDir.add(GpsTagConstants.GPS_TAG_GPS_LATITUDE,
                                 RationalNumber.valueOf(latitudeDegrees),
                                 RationalNumber.valueOf(latitudeMinutes),
diff --git a/importPicture/test/osm/jp/gpx/ImportPictureTest.java b/importPicture/test/osm/jp/gpx/ImportPictureTest.java
index a462fe5..95d4b66 100644
--- a/importPicture/test/osm/jp/gpx/ImportPictureTest.java
+++ b/importPicture/test/osm/jp/gpx/ImportPictureTest.java
@@ -9,6 +9,8 @@
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.nio.channels.FileChannel;
 
 import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
@@ -227,7 +229,7 @@
 				            // in TRKSEG(1) (2017-05-29T01:23:18 - 2017-05-29T01:24:05)
 							new Expecter("separate/20170529_102318A.jpg", true, "2017:05:29 10:23:18", 35.8812697884D, 137.9952202085D, true),
 							new Expecter("separate/20170529_102322A.jpg", true, "2017:05:29 10:23:22", 35.8810500987D, 137.9951669835D, true),
-							new Expecter("separate/20170529_102405A.jpg", true, "2017:05:29 10:24:05", 35.8808881603D, 137.9979396332D, true),
+							new Expecter("separate/20170529_102405A.jpg", true, "2017:05:29 10:24:05", 35.8808641881D, 137.9981065169D, true),
 
 				            // out of time (2017-05-29T01:24:05 - 2017-05-29T01:24:37)
 							new Expecter("separate/20170529_102409A.jpg", false, null, 90.0D, 180.0D, false),
@@ -263,7 +265,7 @@
 				            // in TRKSEG(1) (2017-05-29T01:23:18 - 2017-05-29T01:24:05)
 							new Expecter("separate/20170529_102318A.jpg", true, "2017:05:29 10:23:18", 35.8812697884D, 137.9952202085D, true),
 							new Expecter("separate/20170529_102322A.jpg", true, "2017:05:29 10:23:22", 35.8810500987D, 137.9951669835D, true),
-							new Expecter("separate/20170529_102405A.jpg", true, "2017:05:29 10:24:05", 35.8808881603D, 137.9979396332D, true),
+							new Expecter("separate/20170529_102405A.jpg", true, "2017:05:29 10:24:05", 35.8808641881D, 137.9981065169D, true),
 
 				            // out of time (2017-05-29T01:24:05 - 2017-05-29T01:24:37)
 							new Expecter("separate/20170529_102409A.jpg", true, "2017:05:29 10:24:09", 90.0D, 180.0D, true),
@@ -608,15 +610,61 @@
             	// LAT,LON
             	GPSInfo gpsInfo = exif.getGPS();
             	if (es[i].latD != 90.0D) {
-                	assertThat(round7(gpsInfo.getLatitudeAsDegreesNorth()), is(round7(es[i].latD)));
+                	//assertThat(comparePosition(gpsInfo.getLatitudeAsDegreesNorth(), es[i].latD), is(true));
+                	assertThat(String.format("%.7f", gpsInfo.getLatitudeAsDegreesNorth()), is(comparePosition(es[i].latD)));
             	}
             	if (es[i].lonD != 180.0D) {
-                	assertThat(round7(gpsInfo.getLongitudeAsDegreesEast()), is(round7(es[i].lonD)));
+                	//assertThat(comparePosition(gpsInfo.getLongitudeAsDegreesEast(), es[i].lonD), is(true));
+                	assertThat(String.format("%.7f", gpsInfo.getLongitudeAsDegreesEast()), is(comparePosition(es[i].lonD)));
             	}
 	        }
 		}
 	}
 	
+	static String comparePosition(double b) {
+		//System.out.println(String.format("a=%.10f : b=%.10f", a, b));
+		
+		BigDecimal bB = BigDecimal.valueOf(b);
+        int degreesB = (bB.setScale(0, RoundingMode.DOWN)).intValue();
+        bB = bB.subtract(BigDecimal.valueOf(degreesB));
+        bB = bB.multiply(BigDecimal.valueOf(60));
+        int minutesB = (bB.setScale(0, RoundingMode.DOWN)).intValue();
+        bB = bB.subtract(BigDecimal.valueOf(minutesB));
+        bB = bB.multiply(BigDecimal.valueOf(60));
+        int secondsB = (bB.setScale(0, RoundingMode.DOWN)).intValue();
+
+		BigDecimal aB = BigDecimal.valueOf(secondsB);
+		aB = aB.divide(BigDecimal.valueOf(60), 7, RoundingMode.HALF_UP);
+		aB = aB.add(BigDecimal.valueOf(minutesB));
+		aB = aB.divide(BigDecimal.valueOf(60), 7, RoundingMode.HALF_UP);
+		aB = aB.add(BigDecimal.valueOf(degreesB));
+		
+        /*
+		BigDecimal aB = BigDecimal.valueOf(a);
+        int degreesA = (aB.setScale(0, RoundingMode.DOWN)).intValue();
+        aB = aB.subtract(BigDecimal.valueOf(degreesA));
+        aB = aB.multiply(BigDecimal.valueOf(60));
+        int minutesA = (aB.setScale(0, RoundingMode.DOWN)).intValue();
+        aB = aB.subtract(BigDecimal.valueOf(minutesA));
+        aB = aB.multiply(BigDecimal.valueOf(60));
+        int secondsA = (aB.setScale(0, RoundingMode.DOWN)).intValue();
+		System.out.println(String.format("a=%2d : b=%2d", degreesA, degreesB));
+        if (degreesA != degreesB) {
+        	return false;
+        }
+		System.out.println(String.format("a=%2d : b=%2d", minutesA, minutesB));
+        if (minutesA != minutesB) {
+        	return false;
+        }
+		System.out.println(String.format("a=%2d : b=%2d", secondsA, secondsB));
+        if (secondsA != secondsB) {
+        	return false;
+        }
+		return true;
+        */
+        return String.format("%.7f", aB.doubleValue());
+	}
+	
 	/**
 	 * 小数点第８位で四捨五入した文字列
 	 * @param d