Calculate 7/12 + 4/20 - 2/6

Question

asked Jan 6, 2023 103k views

2 Answers

Raafat Alhmidi · Answer 1 · 2023-01-10T23:15:13+0000

The least common multiple of 12, 20 and 6 is 60. Reducing the fractions to the denominator 60 we have:

$\bold{ (7)/(12) + (4)/(20) - (2)/(6) = (35)/(60) + (12)/(60) - (20)/(60) } \\ \\ \bold{= (35 + 12 - 20)/(60) = (27)/(60) = (9)/(20) }$

If any addend is an integer, an I is placed as denominator and the same operation is done.