Предмет: Математика, автор: ZhamilyaZ

Номер 529 (3)
Номер 530 (1,2)
Желательно с объяснением

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Ответы

Автор ответа: jirafokakens
1

Ответ:

529

3) (4 3/5-2 1/5):1 1/10=2 2/5:1 1/10=2 2/5:11/10=

12/5:11/10=12/5*10/11?=24/11=2 2/11

530

1)8/27*9/7:4/7=8/27*9/7*7/4=2/3

2)11/12:7/24:2 2/21=11/12*24/7*21/44=6/4=1 2/4

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