1 files changed, 1 insertions, 0 deletions
diff --git a/builtin.cpp b/builtin.cpp
index 610cdec..94fcd9b 100644
--- a/builtin.cpp
+++ b/builtin.cpp
@@ -327,6 +327,7 @@ RatNumObj *RatNumObj::from_string(string repr) {
     try
     {
         mpq_class ret(repr, 10);
+        ret.canonicalize();
         return new RatNumObj(ret);
     }
     catch (std::invalid_argument &e)