Answers

2014-01-09T15:20:57+08:00
A ratio is a comparison of two similar quantities obtained by dividing one quantity by the other. Ratios are written with the : symbol.


Example:The ratio of 6 to 3 is 6 ÷ 3 = 6/3 = 6 : 3 = 2 Example:The ratio of 3 to 6 is

3 ÷ 6 = 3/6 = 3 : 6 = 1/2


A proportion is a statement of the equality of two ratios.


Example:6 : 3 = 2 : 1 or 6 / 3 = 2 / 1or 62
- = -
31
are ways to write the proportion expressed as:6 is to 3 as 2 is to 1
Example:2 : 8 = 1 : 4 or 2 / 8 = 1 / 4or 21
- = -
84
are ways to write the proportion expressed as:2 is to 8 as 1 is to 4

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