Предмет: Математика, автор: Nastay151

помогите срочно решить (4,35-(4/45+5/18):4,4):0,32

Ответы

Автор ответа: Nastya171167

4/45 + 5/18 = 8/90 + 25/90 = 33/90 = 11/30
11/30 : 4,4 = 11/30 : 4 4/10 = 11/30 : 22/5 = 11/30 * 5/22 = 1/12
4,35-1/12= 4 35/100 - 1/12 = 87/20 - 1/12 = 261/60 - 5/60 = 256/60 = 64/15 = 4 4/15
4 4/15 : 0,32 = 4 4/15 : 32/100 = 64/15 : 8/25 = 64/15 * 25/8 = 40/3 = 13 1/3

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