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Theory

Write as a sum of fractions

If the numerator of a fraction is a sum it can be rewritten as sum of fractions. The denominator is the same, and the numerators are the terms in the sum of the original expression.

\frac{2 + 3}{7} = \frac{2}{7} + \frac{3}{7} .

This is the same rule as when adding fractions, but the other way around.

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