You can do that using +6 and -6 .
(6) · (-6) = - 36
(6) + (-6) = 0
Find a number that both of the denominates make the same number for example if one denominator is 1/7 and the other is 2/6 then you
2/6 * 7 = 14 over 42 then the other one would be 1/7 *6 which would be 6 over 42 you find common denominators by finding a number both of the bottom ones can equal. hope this helps
The answer should be option C! I think? I hope it helps :)
