Combining ratios
Lesson 2 / 11
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Lesson outcome
I can combine ratios.
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There may be a relationship between quantities A and B and a relationship between quantities B and C
Therefore there is a relationship between A and C
If A : B and B : C then A : B : C and A : C
When the common quantity is not the same in each ratio, equivalent ratios can be used
For example, if A:B and 2B:5C then 2A:2B:5C and 2A:5C
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