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Multiply each numerator by the opposite denominator, otherwise known as cross multiply. Then compare these two products and determine which one is larger. The fraction that contributed the numerator (top number) to the larger product is the larger fraction.

For example:

Which is larger, 2/5 or 3/4?

Multiply 2 X 4 = 8

Multiply 3 X 5 = 15

Determine that 15 is larger than 8.

Determine that the fraction 3/4 contributed the numerator (top number) to the larger product, 15.

So 3/4 is larger than 2/5.

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Q: How do you find out which fraction is larger?
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