Ratios tell how one number is related to another number.
A ratio may be written as A:B or A/B or by the phrase "A to B".
A ratio of 1:5 says that the second number is five times as large as the first.
The following steps will allow determination of a number when one number and the ratio between the numbers is given.
Example: Determine the value of B if A=6 and the ratio of A:B = 2:5
- Determine how many times the number A is divisible by the corresponding portion of the ratio. (6/2=3)
- Multiply this number by the portion of the ratio representing B (3*5=15)
- Therefore if the ratio of A:B is 2:5 and A=6 then B=15
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