diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/util/Rational.java b/tools/cldr-code/src/main/java/org/unicode/cldr/util/Rational.java
index 30a0ebdb456..925f441f219 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/util/Rational.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/util/Rational.java
@@ -32,7 +32,8 @@
  *
  * @author markdavis
  */
-public final class Rational implements Comparable<Rational> {
+public final class Rational extends Number implements Comparable<Rational> {
+    private static final long serialVersionUID = 1L;
     private static final Pattern INT_POWER_10 = Pattern.compile("10*");
     public final BigInteger numerator;
     public final BigInteger denominator;
@@ -298,17 +299,24 @@ public BigDecimal toBigDecimal(MathContext mathContext) {
         }
     }
 
+    @Override
     public double doubleValue() {
         if (denominator.equals(BigInteger.ZERO) && numerator.equals(BigInteger.ZERO)) {
             return Double.NaN;
         }
-        return new BigDecimal(numerator)
-                .divide(new BigDecimal(denominator), MathContext.DECIMAL64)
-                .doubleValue();
+        return toBigDecimal(MathContext.DECIMAL64).doubleValue();
+    }
+
+    @Override
+    public float floatValue() {
+        if (denominator.equals(BigInteger.ZERO) && numerator.equals(BigInteger.ZERO)) {
+            return Float.NaN;
+        }
+        return toBigDecimal(MathContext.DECIMAL32).floatValue();
     }
 
     public BigDecimal toBigDecimal() {
-        return toBigDecimal(MathContext.UNLIMITED);
+        return toBigDecimal(MathContext.DECIMAL128); // prevent failures due to repeating fractions
     }
 
     public static Rational of(BigDecimal bigDecimal) {
@@ -736,4 +744,14 @@ public boolean approximatelyEquals(Rational b) {
     public boolean approximatelyEquals(Number b) {
         return approximatelyEquals(Rational.of(b.doubleValue()), EPSILON);
     }
+
+    @Override
+    public int intValue() {
+        return toBigDecimal().intValue();
+    }
+
+    @Override
+    public long longValue() {
+        return toBigDecimal().longValue();
+    }
 }