21 : 6
factor out a 3
3(7 : 2)
7 : 2
==========simplified ratio
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2 to 1
1 : 6
6 to 5.6 = 60 to 56 = 30 to 28 = 15 to 14
The ratio of 63 and 6 can be simplified by dividing both numbers by their greatest common divisor, which is 3. Dividing, we get 63 ÷ 3 = 21 and 6 ÷ 3 = 2. Therefore, the simplified ratio of 63 to 6 is 21:2.
Divide the percentage by 100 and simplify. For example 24% = 24/100 = 6/25