Question

find the value of
4/-7-5/14
(-14/25) x (30/-49)
19/20 divided by (38/15)

Answer 1

$$\begin{gathered} \frac{4}{-7}-\frac{5}{14} \\ Makingthedenominatorsame, \\ \frac{-8}{14}-\frac{5}{14} \\ =\frac{-8-5}{14}=\frac{-13}{14} \end{gathered}$$


$$\begin{gathered} \frac{-14}{25}\times \frac{30}{-49} \\ =\frac{2\times 7}{5\times 5}\times \frac{5\times 6}{7\times 7} \\ =\frac{2\times 6}{5\times 7} \\ =\frac{12}{35} \end{gathered}$$