Mathematics, 03.11.2020 17:20, Taylor129

Tommy used benchmark fractions to estimate the sum of 1/5 +3/7 as 1. Tommy's teacher said he was incorrect. Explain what error Tommy might have made and what tips you can give him to solve the problem correctly.

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Tommy used benchmark fractions to estimate the sum of 1/5 +3/7 as 1. Tommy's teacher said he was inc...