Выполните умножение смешанных чисел:1)8 9/20*2/13 2)5 1/3*3/8 3)2 1/2*1 3/5 4)3 7/9*1 1/17 5)7 1/2*2 4/15 6)5 1/6*3 1/7 7)3 3/7*2 1/3 8)7 1/3*2 2/11
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2) 5 1/3 * 3/8 = 16/3 * 3/8 = 2
3) 2 1/2 * 1 3/5 = 5/2 * 8/5 = 4
4) 3 7/9 * 11/17 = 34/9 * 11/17 = 22/9 = 2 4/9
5) 7 1/2 * 2 4/15 = 15/2 * 34/15 = 17
6) 5 1/6 * 3 1/7 = 31/6 * 22/7 = 341/21 = 16 5/21
7) 3 3/7 * 2 1/3 = 24/7* 7/3 = 8
8) 7 1/3 * 2 2/11 = 22/3 * 24/11 = 16