Пошаговое объяснение:
1) 1 2/3 * 1 1/2 = 5/3 * 3/2 = 5/2
2) 5/2 * 2 1/5 = 5/2 * 11/5 = 11/2 = 5 1/2
3) 10 - 5 1/2 = 9 2/2 - 5 1/2 = 4 1/2
4) 1/4 : 9/8 = 1/4 * 8/9 = 1/1 * 2/9 = 2/9
5) 2/9 + 1/3 = 2/9 + 3/9 = 5/9
6) 5/9 - 1 1/2 = 10/18 - 1 9/18 = 10/18 - 27/18 = -17/18
7) 4 1/2 * (-17/18) = 9/2 * (-17/18) = 1/2 * (-17/2) = -17/4
8) -17/4 : 3 1/3 = -17/4 : 10/3 = -17/4 * 3/10 = -51/40 = -1 11/40
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Пошаговое объяснение:
1) 1 2/3 * 1 1/2 = 5/3 * 3/2 = 5/2
2) 5/2 * 2 1/5 = 5/2 * 11/5 = 11/2 = 5 1/2
3) 10 - 5 1/2 = 9 2/2 - 5 1/2 = 4 1/2
4) 1/4 : 9/8 = 1/4 * 8/9 = 1/1 * 2/9 = 2/9
5) 2/9 + 1/3 = 2/9 + 3/9 = 5/9
6) 5/9 - 1 1/2 = 10/18 - 1 9/18 = 10/18 - 27/18 = -17/18
7) 4 1/2 * (-17/18) = 9/2 * (-17/18) = 1/2 * (-17/2) = -17/4
8) -17/4 : 3 1/3 = -17/4 : 10/3 = -17/4 * 3/10 = -51/40 = -1 11/40