Question

Express $0.42$ into fraction in their lowest terms.

Answer 1

Step 1. Write down $0.42$ as divided by $1$, i.e. $\frac{0.42}{1}$

Step 2. Multiply both numerator and denominator by $100$ ( as there are $2$ digit after the decimal point.)

$\frac{0.42\times 100}{1\times 100}=\frac{42}{100}$

Step 3. Simplify the fraction.

$\frac{42÷2}{100÷2}=\frac{21}{50}$

Hence, $\frac{21}{50}$ is the fraction of decimal _.