Kusum Wadhwa and Anju Loomba Solutions for Chapter: Fractions, Exercise 2: Exercise 4 .1

If $\frac{3}{5}=\frac{\mathrm{k}}{10}$, then the value of $\mathrm{k}$ is _____.

If $\frac{1}{6}=\frac{\mathrm{x}}{18}$, then the value of $\mathrm{x}=$_____.

If $\frac{3}{5}=\frac{18}{\mathrm{k}}$, then the value of $\mathrm{k}$ is _____.

If $\frac{5}{15}=\frac{1}{\mathrm{k}}$ Then, $\mathrm{k}=$ _____.

Cross-multiply to find whether the fractions are equivalent
$\frac{3}{8},\frac{18}{24}$

Cross-multiply to find whether the fractions are equivalent
$\frac{88}{120},\frac{11}{12}$

Cross-multiply to find whether the fractions are equivalent
$\frac{86}{12},\frac{28}{39}$

About $\frac{7}{10}$ of the surface of the earth is covered with water. Express this as an equivalent fraction with $100$ as denominator.