Question

Express each of the following numbers in the form$\frac{p}{q}$.
(i) 0.675 (ii) -25.6875

Answer 1

(i) $0.675=\frac{675}{1000}$

$=\frac{675÷25}{1000÷25}=\frac{27}{40}$

(ii) $-25.6875=\frac{-256875}{10000}$

$=\frac{-256875÷625}{10000÷625}=\frac{-411}{16}$