Vaishali Bhatia and Rupesh Pathak Solutions for Chapter: Rational Numbers, Exercise 10: Worksheet

$\left(-1\right)\times \left(0-x\right)$ is a negative number if $x$ is a positive rational number.

$-x\times y$ is positive if $x$ and $y$ both are negative rational numbers.

Product of two rational numbers can never be an integer.

Express $\frac{2}{5}$ as a rational number with denominator $40$

Express $\frac{2}{5}$ as a rational number with numerator $12$

Express $\frac{2}{5}$ as a rational number with numerator $-16$

Express $\frac{2}{5}$ as a rational number with denominator $-100$

$\frac{2}{7}=\frac{\square }{56}$