1 files changed, 2 insertions, 0 deletions
diff --git a/ratio.h b/ratio.h
index 56701f3..5899cfa 100644
--- a/ratio.h
+++ b/ratio.h
@@ -10,6 +10,8 @@ unsigned int to_exptype(unsigned int);
 
 bool is_greater(rational,rational);
 
+rational maximum(rational,rational);
+
 rational sum(rational,rational);
 
 rational difference(rational,rational);