July 2022 1 4 Report
в каком из примеров сложение выполнено верно? 1) 2/7+4/5=2х5+4х7/5х7; 2) 3/8+6/7=3+6/8+7; 3) 8/9+6/11=8+6/9х11; 4) 5/9+4/7=5х7+4х9/9+7
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