Question

29/12 - 79/60 + 91/40

Answer 1

This question can be solved by taking l c m of denominator and multiply that with numenator

Answer 2

$\frac{29}{12} - \frac{79}{60} + \frac{91}{40}$
$= \frac{(29*10)-(79*2)+(91*3)}{120}$
$= \frac{290-158+273}{120}$
$= \frac{132+273}{120}$
$= \frac{405}{120}$
$= \frac{27}{8}$

First, take the LCM of the denominators. Then, adjust the numerators based on your LCM. 

Hope this may help you.