Question

Question 1 (iii)

Find the sum:
$\frac{-9}{10}+\frac{22}{15}$

Answer 1

$\frac{-9}{10}+\frac{22}{15}=\frac{-9\times 3}{10\times 3}+\frac{22\times 2}{15\times 2}=\frac{-27}{30}+\frac{44}{30}$ [L.C.M of 10 and 15 is 30]
$=\frac{-27+44}{30}=\frac{17}{30}$