Subtract 3/5 from 7/8.

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Multiple Choice

Subtract 3/5 from 7/8.

Explanation:
Subtracting fractions needs a common denominator so the pieces line up. The denominators 8 and 5 have a common multiple of 40, so rewrite each fraction with denominator 40: 7/8 becomes 35/40 and 3/5 becomes 24/40. Now subtract the numerators: 35 − 24 = 11. Put it over the common denominator: 11/40. This fraction is already in simplest terms, since 11 and 40 have no common factors other than 1.

Subtracting fractions needs a common denominator so the pieces line up. The denominators 8 and 5 have a common multiple of 40, so rewrite each fraction with denominator 40: 7/8 becomes 35/40 and 3/5 becomes 24/40. Now subtract the numerators: 35 − 24 = 11. Put it over the common denominator: 11/40. This fraction is already in simplest terms, since 11 and 40 have no common factors other than 1.

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