convert negative numbers to positive before comparing

Author: enjoy15

Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js

@@ -8,11 +8,9 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
-  // First check: both numerator and denominator should be positive
-  if (numerator < 0 || denominator < 0) {
-    return false;
-  }
-  
+  // First check: convert negative numbers to positive before comparing
+  numerator = Math.abs(numerator);
+  denominator = Math.abs(denominator);
   // Second check: numerator should be less than denominator
   if (numerator < denominator) {
     return true;