Question

Simplify the ratio.15 to 21 is ...

Answer 1

The ratio of 15 to 21 is translated as;

`15\colon21=(15)/(21)`

Then, we can reduce the ratio by dividing the numerator and denominator by 3:

`\begin{gathered} (15)/(21)=(5)/(7) \\ (5)/(7)=5\colon7 \end{gathered}`

The ratio of 15 to 21 can be simplified to 5:7