1 files changed, 4 insertions, 1 deletions
diff --git a/ratio.c b/ratio.c
index ad2b0ea..4b5c56b 100644
--- a/ratio.c
+++ b/ratio.c
@@ -84,7 +84,10 @@ rational difference(rational r1, rational r2){
 	return sum(r1,r2);
 }
 
-bool is_greater(rational r1, rational r2){ return !(difference(r1,r2).s); }
+bool is_greater(rational r1, rational r2){
+	rational diff = difference(r1,r2);
+	return !diff.s && diff.n > 0;
+}
 
 rational maximum(rational r1, rational r2){
 	if(is_greater(r1,r2)) return r1;