15целых1/6:7целых2/3=1целая45/46
=1целая45/46:2/5=4целых87/92
4целых87/92: 1/23=4целых71/96
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15целых1/6:7целых2/3=1целая45/46
=1целая45/46:2/5=4целых87/92
4целых87/92: 1/23=4целых71/96