Question

$- frac{5}{16} times frac{4}{7} - frac{21}{32} div ( - frac{9}{4})$

Answer 1

1) -5/16 * 4/7 = -5/4 * 1/7 = -5/28

2) 21/32 * (-4/9) = 7/8* ( - 1/3) = -7/24

3) -5/28 + 7/24 = -5*24+7*28 /672 = -120+196/672 = 76/672 = 19/168