SME
Grade 5 Math · Problem type
Estimate sums of fractions
Use this for “Is the sum more or less than 1?” before adding.
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Is the sum less than 1, equal to 1, or more than 1?
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Assumptions
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Compare each fraction with 1/2: two fractions less than 1/2 add to less than 1.
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Two fractions more than 1/2 add to more than 1.
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A sum like 2/5 + 1/2 is less than 1: 2/5 is less than 1/2.
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