Выполните действия. 5/12 + 7/12; 2/15 + 3/15; 3/16 + 5/16; 13/18 - 5/18; 3+20 + 9/20. Created by надеждашахова. matematika-ru

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November 2021 1 8 Report

Выполните действия. 5/12 + 7/12; 2/15 + 3/15; 3/16 + 5/16;
13/18 - 5/18; 3+20 + 9/20

xapugin2012 5/12+7/12=12/12=1
2/15+3/15=5/15=1/3
3/16+5/16=8/16=1/2
13/18-5/18=8/18=4/9
23 9/20

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