Step by step
The question
Question: simplify the ratio 21 to 14.
Simplify means: smaller numbers, the same ratio.
21 : 14
1 Divide every part
21 and 14 can both be divided by 7.
We divide every part by 7.
The ratio stays the same.
= 21 ÷ 7 : 14 ÷ 7
21 divided by 7 is 3.
14 divided by 7 is 2.
= 3 : 2
Nothing else divides all of them.
So the simplest ratio is 3 to 2.
Answer
= 3 : 2