Question

Express the following rational numbers as decimals:

(i) $\frac{42}{100}$ (ii) $\frac{327}{500}$ (iii) $\frac{15}{4}$

Answer 1

(i) $\frac{42}{100}$ = 0.42

(ii) $\frac{327}{500}$ = $\frac{327\times 2}{500\times 2}=\frac{654}{1000}=0.654$

(iii) $\frac{15}{4}$ = $\frac{15\times 25}{4\times 25}$ = $\frac{375}{100}=3.75$