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To add/subtract fractions, the denominators (bottom numbers) must be equal; so first convert the fractions into equivalent fractions with the same denominator. Then the numerators (top numbers) are added/subtracted and the resulting fraction simplified:

3/4 + 2/3 = (3×3)/(4×3) + (2×4)/(3×4) = 9/12 + 8/12 = 17/12 = (12×1+5)/12 = 1 5/12.

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9y ago

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