diff --git a/addition.py b/addition.py
index e184760..0531013 100644
--- a/addition.py
+++ b/addition.py
@@ -2,6 +2,6 @@
 num2 = int(input("Enter second number: "))
 
 # addition
-result = num1 * num2
+result = num1 + num2
 
 print("The sum of", num1, "and", num2, "is", result)
diff --git a/gcd.py b/gcd.py
index 3c39d8d..e6d8bdd 100644
--- a/gcd.py
+++ b/gcd.py
@@ -2,6 +2,11 @@
 num2 = int(input("Enter second number: "))
 
 # greatest common divisor
-result = num1 + num2
+m=max(num1,num2)
+n=min(num1,num2)
+for i in range(1,n+1):
+    if(m%i==0 and n%i==0):
+        result=i
+
 
 print("The GCD of", num1, "and", num2, "is", result)