Ответ:
Пошаговое объяснение:
3/4=2/4+1/4=1/2+1/4
5/7=20/28=14/28+6/28=1/2+4/28+2/28=1/2+1/7+1/14
7/8=4/8+3/8=1/2+6/16=1/2+4/16+2/16=1/2+1/4+1/8
2/3=4/6=3/6+1/6=1/2+1/6
5/9=10/18=9/18+1/18=1/2+1/18
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Ответ:
Пошаговое объяснение:
3/4=2/4+1/4=1/2+1/4
5/7=20/28=14/28+6/28=1/2+4/28+2/28=1/2+1/7+1/14
7/8=4/8+3/8=1/2+6/16=1/2+4/16+2/16=1/2+1/4+1/8
2/3=4/6=3/6+1/6=1/2+1/6
5/9=10/18=9/18+1/18=1/2+1/18