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Fractions: Add, Subtract, Multiply

4.G.1Decompose into unit fractions01/04

Decompose a fraction into unit fractions.

Step01of 04

A unit fraction has 1 as numerator: $1/2, 1/3, 1/4, 1/5, \dots$ . Every fraction is a SUM of unit fractions.

\frac{3}{5} = \frac{1}{5} + \frac{1}{5} + \frac{1}{5}

Three copies of $1/5$ . The numerator counts how many.

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4.G.1 – 4.G.6 · CCSS 4.NF.B · Full curriculum →