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Multiplying and Dividing Fractions

Multiplying and Dividing Fractions. Equivalent Fractions. Multiplication preserves the proportional relationships and produces equivalent fractions You have 2 minutes to write down as many equivalent fractions to ½ This activity can become a useful routine to develop fluency.

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Multiplying and Dividing Fractions

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  1. Multiplying and Dividing Fractions

  2. Equivalent Fractions • Multiplication preserves the proportional • relationships and produces equivalent • fractions • You have 2 minutes to write down as many • equivalent fractions to ½ • This activity can become a useful routine • to develop fluency.

  3. Expectations for multiplicationof fractions Y6 POS multiply simple pairs of proper fractions, writing the answer in its simplest form (e.g. × = ) 1 1 1 4 2 8

  4. Try These 1 1 1 1 1 2 1 1 X X X X 2 4 4 4 3 4 3 3

  5. What do you notice? = 2 1 1 2 1 1 1 1 1 X X X 3 4 4 16 12 3 4 4 12 = =

  6. Expectations for Division of Fractions Y6 POS divide proper fractions by whole numbers (e.g. ÷ 2 = ) 1 1 3 6

  7. Try these • ÷ 2 • ÷ 3 • ÷ 2 • ÷ 2 2 1 1 1 5 5 3 2

  8. What do you notice? • ÷ 2 • ÷ 3 • ÷ 2 • ÷ 2 x x x x 1 2 1 1 1 1 1 1 1 1 2 1 5 5 3 2 3 2 2 3 2 5 5 2

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