Question

When trying to find a common denominator, can you multiply the denominators and get a common denominator?(example: 3/7 2/5

7 x 5 = 35
2/35 3/35)

Answer 1

im pretty sure you have to cross muliply

but i learned in school what ever you do to the top do to the bottom

hope it helps

sorry no definet answer

Explanation: