diff --git a/pyerrors/correlators.py b/pyerrors/correlators.py
index 65b26525..b6c7706e 100644
--- a/pyerrors/correlators.py
+++ b/pyerrors/correlators.py
@@ -752,11 +752,14 @@ class Corr:
         return self._apply_func_to_corr(np.arctanh)
 
     # Right hand side operations (require tweak in main module to work)
+    def __radd__(self, y):
+        return self + y
+
     def __rsub__(self, y):
         return -self + y
 
     def __rmul__(self, y):
         return self * y
 
-    def __radd__(self, y):
-        return self + y
+    def __rtruediv__(self, y):
+        return (self / y) ** (-1)
diff --git a/pyerrors/pyerrors.py b/pyerrors/pyerrors.py
index a343979c..481b6593 100644
--- a/pyerrors/pyerrors.py
+++ b/pyerrors/pyerrors.py
@@ -642,10 +642,8 @@ class Obs:
         else:
             if isinstance(y, np.ndarray):
                 return np.array([self / o for o in y])
-
             elif y.__class__.__name__ == 'Corr':
                 return NotImplemented
-
             else:
                 return derived_observable(lambda x, **kwargs: x[0] / y, [self], man_grad=[1 / y])
 
@@ -655,6 +653,8 @@ class Obs:
         else:
             if isinstance(y, np.ndarray):
                 return np.array([o / self for o in y])
+            elif y.__class__.__name__ == 'Corr':
+                return NotImplemented
             else:
                 return derived_observable(lambda x, **kwargs: y / x[0], [self], man_grad=[-y / self.value ** 2])