Question

Find the ratio of $30$ minutes to $15$ hours.

Answer 1

Step 1: Express the bigger quantity in terms of the smaller quantity:

$15$ hours is bigger than $30$ minutes.

$1$ hour $=60$ minutes.

$\therefore 15$ hours $=15\times 60=900$ minutes.

Step 2: Find their ratio:

The ratio of $30$ minutes to $15$ hours is,

$$\begin{gathered} 30:900 \\ =1:30 \end{gathered}$$

Therefore, the ratio of $30$ minutes to $15$ hours is $1:30$.