Question

it is urgent please answer this question

Answer 1

11/5+11/7-9/2-3/5+78/5
(154+110-315-42+1092)/70
1009/70
29/70
14

Answer 2

$\frac{11}{5}+ \frac{11}{7}- \frac{8}{2}- \frac{3}{5}+ \frac{78}{35} \\⇒ \frac{150}{70} + \frac{110}{70}+ \frac{-280}{70}+\frac{-42}{70}+\frac{156}{70} \\⇒ \frac{260}{70}+( \frac{-280}{70}- \frac{42}{70})+ \frac{156}{70} \\⇒ \frac{416-322}{70} \\ ⇒ \frac{94}{70} \\⇒ \frac{47}{35}$

Ta-da!