Fraction: Use of(numerator) to construct the public constants.
diff --git a/commons-numbers-fraction/src/main/java/org/apache/commons/numbers/fraction/Fraction.java b/commons-numbers-fraction/src/main/java/org/apache/commons/numbers/fraction/Fraction.java
index 7fc5c7e..8f41989 100644
--- a/commons-numbers-fraction/src/main/java/org/apache/commons/numbers/fraction/Fraction.java
+++ b/commons-numbers-fraction/src/main/java/org/apache/commons/numbers/fraction/Fraction.java
@@ -36,10 +36,10 @@
                NativeOperators<Fraction>,
                Serializable {
     /** A fraction representing "0". */
-    public static final Fraction ZERO = new Fraction(0, 1);
+    public static final Fraction ZERO = of(0);
 
     /** A fraction representing "1". */
-    public static final Fraction ONE = new Fraction(1, 1);
+    public static final Fraction ONE = of(1);
 
     /** Serializable version identifier. */
     private static final long serialVersionUID = 20190701L;