This activity is about the ratio 2:3
Example
Josh |
Jaz |
The ratio 2:3 can be written as follows:
For every 2 cars Josh has, Jaz has 3.
For every 4 cars Josh has, Jaz has 6.
Example
For every __?__ cars Josh has, Jaz has 24.
Answer
We need to work out how many groups of the ratio 2:3 we are dealing with.
In each group, Jaz has 3 cars. So the number of groups is 24 ÷ 3 = 8.
In each group, Josh has 2 cars. So in 8 groups, Josh will have 8 x 2 = 16 cars.
The answer is 16.
Or we could do it this way:
We have to do the same thing to both sides of the ratio.
We have the ratio 2:3
We multiplied the 3 by 8 to get 24
So, we have to multiply the 2 by 8 to get 16.
Let's try some questions using either of these methods to find the answer.