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Estimating Fractions

Learn how to estimate addition or subtraction problems by rounding fractions to the nearest half. Practice rounding fractions such as 7/9 to 5.5 or 3.7 to 4. Explore rounding fractions like 3.11 or 12.5 to the nearest half.

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Estimating Fractions

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  1. Estimating Fractions

  2. Rounding the nearest half Sometimes it is better to round a fraction to the nearest half in order to estimate an addition or subtraction problem… 1 0 ½

  3. Rounding the nearest half 7 9 Is closer to 5, 5 ½ , or 6? 5 Let’s say you want to estimate the sum of the following fractions and mixed numbers… 6 It’s a little closer to 6. 3 5 7 9 1 7 8 + + = 5 3 7 9 5 6 5 5½ 0 9 9 9 4 ½ 9 5 5 5

  4. Rounding the nearest half 1 7 3 Is closer to 3, 3 ½ , or 4? It’s a little closer to 3. 4 3 3½ 1 7 3 7 7 3

  5. Rounding the nearest half 3 5 8 Is closer to 8, 8 ½ , or 9? It’s a little closer to 8 ½ . 9 8 8½ 3 5 8 5 5 8

  6. Round these fractions to the nearest half… 3 11 2 2 2½ 3 2 9 12 12 12½ 13 11 17 5 5 5½ 6 5 24 6 6 6½ 7

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