17* 4/21+(2 1/3-1 3/7:5/9)=

Question

17* 4/21+(2 1/3-1 3/7:5/9)=

Answer 1

Ответ:

Пошаговое объяснение:

1 3/7:5/9=10/7*9/5=18/7=2 4/7

2 1/3-2 4/7=2 7/21-2 12/21=-5/21

17*4/21=68/21

68/21+(-5/21)=68/21-5/21=63/21=3

Answer 2

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Ответ: 3

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