Question

Reduce the following rational numbers in its lowest form:

`(-60)/72`

Answer 1

`(-60)/72` can be written as

= `(-60 ÷ 12)/(72 ÷ 12)`  ...[Dividing numerator and denominator by HCF of 60 and 72 i.e. 12]

= `(-60 xx 1/12)/(72 xx 1/12)`  ...`[∵ "Reciprocal of"  12 = 1/12]`

= `(-5)/6`, which is the lowest form.