S K Gupta and Anubhuti Gangal Solutions for Chapter: Rational Numbers, Exercise 3: Exercise 1(C)

$\frac{3}{4}÷\frac{-8}{7}$ is a rational number.

$0\times \frac{4}{5}=\frac{4}{5}\times 0$ implies that $0$ is the multiplicative identify for rational numbers.

$\frac{-18}{37}\times \frac{11}{40}=\frac{11}{40}\times$ _____

$-19\times \frac{-5}{12}=\frac{-5}{12}\times$ _____

$\left(\frac{6}{11}\times \frac{-20}{21}\right) \times \left(\frac{-7}{8}\right) =$ _____ $\times \left(\frac{-20}{21}\times \frac{-7}{8}\right)$

$\frac{-21}{40}\times \left(\frac{3}{7}\times \frac{17}{-24}\right)=\left(\frac{-21}{40}\times \frac{17}{-24}\right)\times$ _____

Verify the statement given. Also, name the properties of multiplication illustrated by the statement.

$\frac{4}{5}\times \frac{7}{9}=\frac{7}{9}\times \frac{4}{5}$

Verify the statement given. Also, name the properties of multiplication illustrated by the statement.

$\frac{8}{7}\times \frac{9}{-10}=\frac{9}{-10}\times \frac{8}{7}$