Ответ:
4 2/3
Пошаговое объяснение:
1) 2 1/7 - 1 2/7 = 1 8/7 - 1 2/7 = 6/7
2) 6/7 : 2 = 6/7 * 1/2 = 3/7
3) 3/7 + 4 5/21 = 9/21 + 4 5/21 = 4 14/21 = 4 2/3
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Answers & Comments
Ответ:
4 2/3
Пошаговое объяснение:
1) 2 1/7 - 1 2/7 = 1 8/7 - 1 2/7 = 6/7
2) 6/7 : 2 = 6/7 * 1/2 = 3/7
3) 3/7 + 4 5/21 = 9/21 + 4 5/21 = 4 14/21 = 4 2/3