I am creating a simple calculator and when the user enters in two numbers via userinput(), it will add, sub, multiply, and divide the first number by the second number. All answers will be displayed in the useroutput() function and will be called in the main function. Here is my code that isn't working. What is wrong with it? def userinput():
n1 = (input("Enter your first number: "))
n2 = (input("Enter your second number: "))

return n1, n2

def useroutput():

print(num1,"+",num2,"=",result)
print(num1,"-",num2,"=",answer)
print(num1,"*",num2,"=",calc)
print(num1,"/",num2,"=",answer2)

def add(a, b):

return (n1 + n2)
def sub(a, b):

return (n1-n2)
def mult(a, b):
product = a * b
return (n1 * n2)
def divide (a, b):

return (n1/n2)

def main():
num1, num2 = userinput()
result= add (num1, num2)
answer = sub (num1,num2)
calc = mult (num1,num2)
answer2 = divide (num1, num2)

main()