Решите примеры с дробями 20 11/17 * 34 5 7/9*18 11 5/11*22 9 3/7*14
1) 20 11/17 • 34 = 351/17 • 34 = 351 • 2 = 702 2) 5 7/9 • 18 = 52/9 • 18 = 52 • 2 = 104 3) 11 5/11 • 22 = 126/11 • 22 = 126 • 2 = 252 4) 9 3/7 • 14 = 66/7 • 14 = 66 • 2 = 132