Question

Slove using suitable properties
2/5 x 5/16 + (-1/3) x 3/4 + (-2/5) x 15/4
(x = multiplication sign)

Answer 1

$$\begin{gathered} \mathrm{Dear}\mathrm{student}, \\ \frac{2}{5}\times \frac{5}{16}+\left(\frac{-1}{3}\right)\times \frac{3}{4}+\left(\frac{-2}{5}\right)\times \frac{15}{4} \\ =\frac{1}{8}-\frac{1}{4}-\frac{3}{2} \\ =\frac{1-2-12}{8}=\frac{-13}{8} \\ \mathrm{Regards} \end{gathered}$$