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1、 1.3/7 49/9 - 4/3 2.8/9 15/36 + 1/27 3.12 5/6 C 2/9 3 4.8 5/4 + 1/4 5.6 3/8 C 3/8 6 6.4/7 5/9 + 3/7 5/9 7.5/2 - 3/2 + 4/5 8.7/8 + 1/8 + 1/9 9.9 5/6 + 5/6 10.3/4 8/9 - 1/3 11.7 5/49 + 3/14 12.6 1/2 + 2/3 13.8 4/5 + 8 11/5 14.31 5/6 C 5/6 15.9/7 - 2/7 C 10/21 16.5/9 18 C 14 2/7 17.4/5 25/16 + 2/3 3/4
2、18.14 8/7 C 5/6 12/15 19.17/32 C 3/4 9/24 20.3 2/9 + 1/3 21.5/7 3/25 + 3/7 22.3/14 2/3 + 1/6 23.1/5 2/3 + 5/6 24.9/22 + 1/11 1/2 25.5/3 11/5 + 4/3 26.45 2/3 + 1/3 15 27.7/19 + 12/19 5/6 28.1/4 + 3/4 2/3 29.8/7 21/16 + 1/2 30.101 1/5 C 1/5 21 31.5016040 58+37064-45 32.120-14418+35 33.347+452-416052 3
3、458+3764-95 35.9564-45 36.178-14556+42 420+580-642128 37.812-7009+3111 136+6465-34523 38.85+1414+20826 39.284+16512-820818 40.120-36418+35 41.58+3764-95 42.(6.8-6.80.55)8.5 43.0.12 4.80.124.8 44.3.21.5+2.51.6 23.21.5+2.51.6 45.6-1.64= 5.38+7.85-5.37= 46.7.20.8-1.25= 6-1.193-0.43= 47.6.54.8-1.24= 0.6
4、81.9+0.321.9 48.10.15-10.750.4-5.7 49.5.83.87-0.13+4.23.74 50.32.52-6+9.7283.22.5 51.7.1-5.60.9-1.15 2.5 52.5.42.63.7-2.9+0.62 53.12612-7.2-6 41267.2-654.15/16+(7/16-1/4)1/2 2/3+3/4; 5/16-1/4; 1/2+1/3-1/4; 1/4+2/5+3/4+2/5; 2/5-6/1; 2/95/8; 8/15-13/150; 2/7+6/19; 4/52/3; 4/17+4/15; 5/8+2/9+3/8+7/9; 1
5、2/17+12/19; 14/15-13/15; 2/3-3/54/9+5/74/9; 4/77/9; 1/35/196/29; 7/58/9+6/7; 1/2+1/3-5/9; 1/41/54/9+1/18; 5/9+5/6; 4/55/66/77/8; 4/75/98/9; 19/20+19/21+19/22.? 34. (23/4-3/4)*(3*6+2) 35. 3/7 49/9 - 4/3 36. 8/9 15/36 + 1/27 37. 12 5/6 C 2/9 3 38. 8 5/4 + 1/4 39. 6 3/8 C 3/8 6 40. 4/7 5/9 + 3/7 5/9 41
6、.5/2 - 3/2 + 4/5 42.7/8 + 1/8 + 1/9 43.9 5/6 + 5/6 44.3/4 8/9 - 1/3 45.7 5/49 + 3/14 46.6 1/2 + 2/3 47.8 4/5 + 8 11/5 48.31 5/6 C 5/6 49.9/7 - 2/7 C 10/21 50.5/9 18 C 14 2/7 51.4/5 25/16 + 2/3 3/4 52.14 8/7 C 5/6 12/15 53.17/32 C 3/4 9/24 54.3 2/9 + 1/3 55.5/7 3/25 + 3/7 56.3/14 2/3 + 1/6 57.1/5 2/3
7、 + 5/6 58.9/22 + 1/11 1/2 59.5/3 11/5 + 4/3 60.45 2/3 + 1/3 15 61.7/19 + 12/19 5/6 62.1/4 + 3/4 2/363.8/7 21/16 + 1/2 64.101 1/5 C 1/5 21 65.5016040 66.120-14418+35 67.347+452-416052 3758+3764-95 38.9564-45 39.178-14556+42 40.812-7009+3111 41.85+1414+20826 43.120-36418+35 44.58+3764-95 45.(6.8-6.80.
8、55)8.5 46.0.12 4.80.124.8 47.3.21.5+2.51.6 48.6-1.64= 5.38+7.85-5.37= 49.7.20.8-1.25= 6-1.193-0.43= 50.6.54.8-1.24= 51.5.83.87-0.13+4.23.74 52.32.52-6+9.7283.22.5 53.7.1-5.60.9-1.15 2.5 54.5.42.63.7-2.9+0.62 55.12612-7.2-6 56.1267.2-6 57.0.681.9+0.321.9 58.58+37064-45 59.420+580-642128 60.136+665-34
9、523 15-10.750.4-5.7 62.18.13-0.2990.231 63.(6.8-6.80.55)8.5 64.0.12 4.80.124.8 65.3.21.5+2.51.6 66.3.26+1.5+2.51.6 67.0.681.9+0.321.9 68.10.15-10.750.4-5.7 69.5.83.87-0.13+4.23.74 70.32.52-6+9.7283.22.5 71.7.1-5.60.9-1.15 2.5 72.5.42.63.7-2.9+0.62 73.12612-7.2-6 74.1267.2-6 75.33.02-148.4-90.852.5 1
10、)76.(25%-695%-12%)*36 77./4*3/5+3/4*2/5 78.1-1/4+8/9/7/9 79.+1/6/3/24+2/21 80./15*3/5 81.3/4/9/10-1/6 82./3+1/2)/5/6-1/3/1/7 83./5+3/5/2+3/4 84.(2-2/3/1/2)*2/5 85.+5268.32-2569 86.3+456-52*887.5%+6325 88.1/2+1/3+1/4 2)89+456-78 3)5%+. 3/7 49/9 - 4/3 4)9 15/36 + 1/27 5)2 5/6 C 2/9 3 6)3 5/4 + 1/4 7)9
11、4 3/8 C 3/8 6 8)95/7 5/9 + 3/7 5/9 9)6/2 - 3/2 + 4/5 10)8 + 1/8 + 1/9 11)8 5/6 + 5/6 12)1/4 8/9 - 1/3 13)10 5/49 + 3/14 14)1.5 1/2 + 2/3 15)29 4/5 + 8 11/5 16)3.1 5/6 C 5/6 17)4/7 - 2/7 C 10/21 18)19 18 C 14 2/7 19)5 25/16 + 2/3 3/4 20)4 8/7 C 5/6 12/15 21)7/32 C 3/4 9/24 22)1 2/31/2-1/42/5 2 2-6/13
12、9/26-2/3 3 2/91/24/53/8 4 105/91/64 5 1/22/59/109/20 6 5/93/102/72/5 7 1/21/44/5-1/8 8 3/45/74/3-1/2 9 23-8/91/271/27 10 85/62/54 11 1/23/45/124/5 12 8/93/4-3/83/4 13 5/85/43/239/11 23)1.22.5+0.82.5 24)8.91.25-0.91.25 25)12.57.40.8 26)9.96.4-2.5+0.2427 6.59.5+6.50.5 0.351.6+0.353.4 0.258.64 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.93-25-2.5241846-620-380 4.846+4.854 0.8+0.82.5 1.253.682.5-12.52.4 2812.5-12.520 23.65-3.07+3.65 4+0.40.25871.25 1.6599+1.65 27.85-7.85+3.4 481.25+501.250.28 7.89.9+0.78(1010+309+4+681+612 391467826854 5.157/8+6.1-0.60625 1.3/7
