Пошаговое объяснение:
а)
1) 12 1/3 * (3/2)² = 37/3 * 9/4 = 37/1 * 3/4 = 111/4 = 27 3/4
2) 27 3/4 - 24 1/2 = 27 3/4 - 24 2/4 = 3 1/4
б)
1) 10 3/5 - 9 1/4 = 10 12/20 - 9 5/20 = 1 7/20
2) 1 7/20 * (2/3)² = 27/20 * 4/9 = 3/5 * 1/1 = 3/5
в)
1) 6 4/5 - 5 3/4 = 6 16/20 - 5 15/20 = 1 1/20
2) 1 1/20 * (4/7)² = 21/20 * 16/49 = 3/5 * 4/7 = 12/35
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Пошаговое объяснение:
а)
1) 12 1/3 * (3/2)² = 37/3 * 9/4 = 37/1 * 3/4 = 111/4 = 27 3/4
2) 27 3/4 - 24 1/2 = 27 3/4 - 24 2/4 = 3 1/4
б)
1) 10 3/5 - 9 1/4 = 10 12/20 - 9 5/20 = 1 7/20
2) 1 7/20 * (2/3)² = 27/20 * 4/9 = 3/5 * 1/1 = 3/5
в)
1) 6 4/5 - 5 3/4 = 6 16/20 - 5 15/20 = 1 1/20
2) 1 1/20 * (4/7)² = 21/20 * 16/49 = 3/5 * 4/7 = 12/35