maths
posted by Kats .
1. which ratios from a proportion
3/15 12/22
8/24 12/35
5/18 25/90
4/11 16/25

Find a common multiplier.
3/15 12/22
3 * 4 = 12; 12 * 4 = 48  nope
5/18 25/90
5 * 5 = 25; 18 * 5 = 90  yep!
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