Question

Divide the sum of 56/12 and 12/7 by their difference.

Answer 1

[56/12 + 12/7] / [56/12 - 12/7]
= [(392 + 144)/84] / [(392-144)/84] (LCM)
= (536/84) / (248/84)
(changing the divide into multiply)
= 536/84 × 84/248
= 536/1 × 1/248
= 536/248
= 2.16