7836:6=1306 1306Х6=7836
8272:8=1034 1034Х8=8272
74725:7=10675 10675Х7=74725
24528:7=3504 3504Х7=24528
45621:9=5069 5069Х9=45621
52272:9=5808 5808Х9=52272
718207:7=102601 102601Х7=718207
1 1/2 * 2 2/11 + 2 3/4 * 2 2/11 - 2 2/11 * 3 5/6 = 3/2 * 24/11 + 11/4 * 24/11 - 24/11 * 23/6 = 36/11 + 6/1 - 92/11 = (36+66-92)/11 = 10/11
A1._____.B1
А.____,В
я старалась )))