Question

Convert the following fractions into decimal numbers.

(i) $13\frac{1}{2}$ (ii) $\frac{4}{5}$

Answer 1

(i) $13\frac{1}{2}$ = $\frac{13\times 2+1}{2}$ =$\frac{27}{2}=\frac{27\times 5}{2\times 5}=\frac{135}{10}$ = 13.5 ( 1 mark)

(ii) $\frac{4}{5}$ = $\frac{4\times 2}{5\times 2}=\frac{8}{10}$= 0.8 ( 1 mark)