diff --git a/Exercise_01/Exercise_01_07/Exercise_01_07.java b/Exercise_01/Exercise_01_07/Exercise_01_07.java
index 1255f331..b4da2d59 100755
--- a/Exercise_01/Exercise_01_07/Exercise_01_07.java
+++ b/Exercise_01/Exercise_01_07/Exercise_01_07.java
@@ -1,8 +1,8 @@
 public class Exercise_01_07{
 	public static void main(String[] args) {
-		System.out.println(4 * (1.0 - (1 / 3) + (1 / 5) -
-						  (1 / 7) + (1 / 9) - (1 / 11)));
-		System.out.println(4 * (1.0 - (1 / 3) + (1 / 5) - (1 / 7)
-						   + (1 / 9) - (1 / 11) + (1 / 13)));
+		System.out.println(4 * (1.0 - (1.0 / 3) + (1.0 / 5) -
+						  (1.0 / 7) + (1.0 / 9) - (1.0 / 11)));
+		System.out.println(4 * (1.0 - (1.0 / 3) + (1.0 / 5) - (1.0 / 7)
+						   + (1.0 / 9) - (1.0 / 11) + (1.0 / 13)));
 	}
 }