Question

evaluate -9/10+22/15+13/-20​

Answer 1

$\frac{ - 9}{10} + \frac{22}{15} + \frac{13}{- 20}$

$\implies \frac{ - 9}{10} + \frac{22}{5}- \frac{13}{20}$

$\implies \frac{ - 9 \times 2 + 22 \times 4 - 13 \times 1}{20}$

$\implies \: \frac{ - 18 + 88 - 13}{20}$

$\implies \: \frac{88 - 31}{20}$

$\implies \: \frac{57}{20}$

Hope its help u.