Dim m As Integer, n As Integer, mn As Integer
n = Val(InputBox("Please enter the first number:"))
m = Val(InputBox("Please enter the second number:"))
mn = Abs(n * m)
Do While n > 0 And m > 0
If n > m Then n = n Mod m Else m = m Mod n
Loop
MsgBox mn \ (m + n)