Add the ratio: 4 + 5 = 9
Divide 9 with 180
180/9 = 20
The ratio is 4 to 5, with 20 being "1"
Multiply 4 with 20 & 5 with 20
4 x 20 = 80
5 x 20 = 100
You collected 80, you're friend 100
In a tape diagram, There should be two parts, in which one part is 1/9th less than half-way point, and the other 1/9 greater than the half-way point.
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