Step by step
The question
Question: simplify the ratio 6 to 9 to 15.
Simplify means: smaller numbers, the same ratio.
6 : 9 : 15
1 Divide every part
6, 9 and 15 can all be divided by 3.
We divide every part by 3.
The ratio stays the same.
= 6 ÷ 3 : 9 ÷ 3 : 15 ÷ 3
6 divided by 3 is 2.
9 divided by 3 is 3.
15 divided by 3 is 5.
= 2 : 3 : 5
Nothing else divides all of them.
So the simplest ratio is 2 to 3 to 5.
Answer
= 2 : 3 : 5