Ответ:
Г) 7. 1/3
Пошаговое объяснение:
1) 2. 1/3 - 1. 3/7 = 2. 7/21 - 1. 9/21 = 1. 28/21 -
1. 9/21 = 19/21
2) 19/21 * 7/19 = 7/21 = 1/3
3) 7. 2/3 - 1/3 = 7. 1/3
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Правильный ответ :Г
Ответ:
Г) 7. 1/3
Пошаговое объяснение:
1) 2. 1/3 - 1. 3/7 = 2. 7/21 - 1. 9/21 = 1. 28/21 -
1. 9/21 = 19/21
2) 19/21 * 7/19 = 7/21 = 1/3
3) 7. 2/3 - 1/3 = 7. 1/3