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## Question

primary 6 | Maths
| Ratio

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If the shaded area of A is 3/5, and the shaded area of B is 5/8, find the ratio of the area of A to area of B.

Answer is 9:10 but I can’t seem to get it

Unshaded area of B = 3/8

Unshaded area of A = Unshaded area of B

2/5 of A = 3/8 of B

Since they are the same area, make the numerator the same.

2/5 = 6/15

3/8 = 6/16

So from this you can infer that tota area of A = 15 units, total area of B = 16 units.

Ratio = 15 : 16

The ratio of 9 : 10 refers to the ratio of shaded area of A to shaded area of B

3/5 = 9/15

5/8 = 10/16

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