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7+8=15 15-6=9
4, 6, 8, 9, 10, 12, 14, 15
9 and 15
Lyns age is 8 years less than 15 times the of her niece elizabeth. If the sum of their age is 24 what is elizabeths age?
You can tell by looking at them that 5/8 is bigger, since 5 is more than half of 8, and 7 is less than half of 15, but if you want the math... 5/8 = 75/120 7/15 = 56/120 75 is bigger than 56.