Update library/coretests/tests/floats/f128.rs

Co-authored-by: beetrees <b@beetr.ee>

Author: tgross35

library/coretests/tests/floats/f128.rs

@@ -332,15 +332,15 @@ fn test_trunc() {
 #[cfg(target_has_reliable_f128_math)]
 fn test_fract() {
     assert_eq!(1.0f128.fract(), 0.0f128);
-    assert_eq!(1.3f128.fract(), 0.300000000000000044408920985006261617f128);
+    assert_eq!(1.3f128.fract(), 0.300000000000000000000000000000000039f128);
     assert_eq!(1.5f128.fract(), 0.5f128);
     assert_eq!(1.7f128.fract(), 0.7f128);
     assert_eq!(0.0f128.fract(), 0.0f128);
     assert_eq!((-0.0f128).fract(), -0.0f128);
     assert_eq!((-1.0f128).fract(), -0.0f128);
-    assert_eq!((-1.3f128).fract(), -0.300000000000000044408920985006261617f128);
+    assert_eq!((-1.3f128).fract(), -0.300000000000000000000000000000000039f128);
     assert_eq!((-1.5f128).fract(), -0.5f128);
-    assert_eq!((-1.7f128).fract(), -0.699999999999999955591079014993738383f128);
+    assert_eq!((-1.7f128).fract(), -0.699999999999999999999999999999999961f128);
 }
 
 #[test]