September 2021 1 7 Report
Выполните сложение. а) 3/8 + 2 1/4; б) 1/4 + 3 1/6; в) 5 2/15 + 3 2/9; г) 2 4/9 + 1/6; д) 1 3/5 + 10 1/4; е) 4 1/4 + 2/9.
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