diff --git a/bitgrad/grad.py b/bitgrad/grad.py
index 8f2b258..d566dd0 100644
--- a/bitgrad/grad.py
+++ b/bitgrad/grad.py
@@ -48,13 +48,13 @@ def _backward():
 
         return out
 
-    def __truediv__(self,other):
+    def __truediv__(self, other):
         other = other if isinstance(other, Value) else Value(other)
-        out = Value(self.data * other.data**(-1.0), (self, other), 'truediv')
+        out = Value(self.data / other.data, (self, other), 'truediv')
 
         def _backward():
-            self.grad += other.data**(-1.0) * out.grad
-            other.grad += self.data * out.grad
+            self.grad += (1.0 / other.data) * out.grad
+            other.grad += (-self.data / (other.data ** 2)) * out.grad
         out._backward = _backward
 
         return out