Question

36 minutes :1 1/2 find the simplest form

Answer 1

First convert 1 1/2 hour to minutes.

$1 \frac{1}{2} \: \text{hour} = 1.5 \: \text{hour} = 90 \: \: \text{minutes}$
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$36\: \text{minute} : 1 \frac{1}{2} \: \text{hour} \\ \\ = 36\: \text{minute} :90\: \text{minute}$

$= \frac{36}{90} \\ \\ = \frac{2 \times 18}{5 \times 18}$

$= \frac{2}{5} \\ \\ = \boxed{2 : 5}$