Пошаговое объяснение:
А
1) 2 * 1/3 = 2/3
2) 2/3 : 6 = 2/3 * 1/6 = 2/18 = 1/9
3) 5/18 : 2 1/2 = 5/18 : 5/2 = 5/18 * 2/5 = 1/9 * 1/1 = 1/9
4) 1/9 + 2/3 - 1/9 = 2/3
В
1) 85 1/3 - 84 1/4 = 85 4/12 - 84 3/12 = 1 1/12
2) 1 1/12 : 1/12 = 13/12 * 12/1 = 13/1 * 1/1 = 13/1 = 13
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Answers & Comments
Пошаговое объяснение:
А
1) 2 * 1/3 = 2/3
2) 2/3 : 6 = 2/3 * 1/6 = 2/18 = 1/9
3) 5/18 : 2 1/2 = 5/18 : 5/2 = 5/18 * 2/5 = 1/9 * 1/1 = 1/9
4) 1/9 + 2/3 - 1/9 = 2/3
В
1) 85 1/3 - 84 1/4 = 85 4/12 - 84 3/12 = 1 1/12
2) 1 1/12 : 1/12 = 13/12 * 12/1 = 13/1 * 1/1 = 13/1 = 13