Update app.py

app.py

@@ -51,11 +51,14 @@ def calculator(text1, operation, text2):
     if operation == "add":
         return generator1(text1) + generator2(text2)
     elif operation == "subtract":
-        return replace(generator1(text1), generator2(text2), "")
+        output = generator1(text1) + generator2(text2)
+        return output.replace(text1, "").replace(text2, "")
     elif operation == "multiply":
-        return generator1(text1) + generator2(text2) + generator2(text3) 
+        output = generator1(text1) + generator2(text2) + generator3(text1)
+        return output
     elif operation == "divide":
-        return replace(generator1(text1), generator3(text2), "")
+        output = generator1(text2) + generator2(text1) + generator3(text2)
+        return output.replace(text1, "").replace(text2, "")
 
 demo = gr.Interface(
     calculator,