Question

Answer 1

m ).

\(=\dfrac{5}{2}x\dfrac{8}{5}=\dfrac{40}{10}=4\)

n ) .

\(=\dfrac{-3}{8}x\dfrac{2}{1}=\dfrac{-6}{8}=-\dfrac{3}{4}\)

p ) .

\(=\dfrac{9}{5}x\dfrac{-5}{3}=\dfrac{-45}{15}=-3\)

q ) .

\(=-15x\dfrac{-2}{3}=\dfrac{30}{3}=10\)

Answer 2

\(m.2\dfrac{1}{2}.1\dfrac{3}{5}=\dfrac{5}{2}.\dfrac{8}{5}=\dfrac{40}{10}=4\)

\(n.\dfrac{-3}{8}:\dfrac{1}{2}=\dfrac{-3}{8}.2=-\dfrac{3}{4}\)

\(p.\dfrac{9}{5}:\dfrac{-3}{5}=\dfrac{9}{5}\times\dfrac{-5}{3}=-3\)

\(q.-15:\dfrac{-3}{2}=-15\times\dfrac{-2}{3}=10\)

Answer 3

m). \(2\dfrac{1}{2}.1\dfrac{3}{5}=\dfrac{5}{2}.\dfrac{8}{5}=\dfrac{40}{10}=4\)

n). \(\dfrac{-3}{8}:\dfrac{1}{2}=\dfrac{-3}{8}.\dfrac{2}{1}=\dfrac{-6}{8}=\dfrac{-3}{4}\)

p). \(\dfrac{9}{5}:\dfrac{-3}{5}=\dfrac{9}{5}.\dfrac{-5}{3}=\dfrac{-45}{15}=\left(-15\right)\)

q). \(-15:\dfrac{-3}{2}=\dfrac{-15}{1}:\dfrac{-3}{2}=\dfrac{-15}{1}.\dfrac{-2}{3}=\dfrac{30}{3}=10\)

Answer 4

\(m)2\dfrac{1}{2}.1\dfrac{3}{5}=\dfrac{5}{2}.\dfrac{8}{5}=\dfrac{5.8}{2.5}=\dfrac{40}{10}=4\)

\(n)\dfrac{-3}{8}:\dfrac{1}{2}=\dfrac{-3}{8}.\dfrac{2}{1}=\dfrac{\left(-3\right).2}{8.1}=\dfrac{-6}{8}=-\dfrac{3}{4}\)

\(p)\dfrac{9}{5}:\dfrac{-3}{5}=\dfrac{9}{5}.-\dfrac{5}{3}=\dfrac{9.\left(-5\right)}{5.3}=\dfrac{-45}{15}=-3\)

\(q)-15:\dfrac{-3}{2}=\dfrac{-15}{1}.\dfrac{-2}{3}=\dfrac{\left(-15\right).\left(-2\right)}{1.3}=\dfrac{30}{3}=10.\)