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1、9. 4/7 5/9 + 3/7 5/910. 5/2 -( 3/2 + 4/5 )11. 7/8 + ( 1/8 + 1/9 )12. 9 5/6 + 5/618. 9/7 - ( 2/7 10/21 )19. 5/9 18 14 2/720. 4/5 25/16 + 2/3 3/421. 14 8/7 5/6 12/1522. 17/32 3/4 9/2423. 3 2/9 + 1/327. 9/22 + 1/11 1/228. 5/3 11/5 + 4/329. 45 2/3 + 1/3 1530. 7/19 + 12/19 5/631. 1/4 + 3/4 2/313. 3/4 8/9

2、 - 1/315. 6 ( 1/2 + 2/3 )16. 8 4/5 + 8 11/58. 63/8 3/8 24. 5/7 3/25 + 3/732. 8/7 21/16 + 1/241.85+14()50.6.5(4.8-1.24)=58.58+370()60.136+6()15-10.750.4-5.7(3.87-0.13+4.23.7452.32.52-()2.553.7.1-5.6)0.9-1.15 (3.7-2.9)+0.62(12-7.2)-662.18.1363.(6.8-6.80.55)8.564.0.12 65.(3.21.5+2.5) 5.38+7.85-5.37=(9+

3、3111)57.0.681.9+0.321.966.3.26+(1.5+2.567.0.681.9+0.321.982./3+1/2)/5/6-1/3/1/783./5+3/5/2+3/484.(2-2/3/1/2)*2/585.+5268.32-256986.3+456-52*83) 5%+. 3/7 49/9 - 4/34) 9 15/36 + 1/275) 2 5/6 2/9 6) 3 5/4 + 1/475.33.02148.490.8568.10.15-10.750.4-5.71) 76.(25%-695%-12%)*3677./4*3/5+3/4*2/578.1-1/4+8/9/7

4、/979.+1/6/3/24+2/2180./15*3/5(3.87-0.13+4.23.7470.32.52-()2.571.7.1-5.6)0.9-1.15 (3.7-2.9)+0.62(12-7.2)-67) 943/8 3/8 8) 95/7 5/9 + 3/7 5/99) 6/2 -( 3/2 + 4/5 )10) 8 + ( 1/8 + 1/9 )81.3/4/9/10-1/619) 5 25/16 + 2/3 3/420) 4 8/7 5/6 12/1521) 7/32 3/4 9/2412) 1/4 8/9 - 1/313) 10 5/49 + 3/1414) 1.5 ( 1/

5、2 + 2/3 )15) 29 4/5 + 8 11/516) 3.1 5/6 5/622) 1、 2、 22/33、 2/93/84、 1/6426) 9.96.4-(2.5+0.24)(27) 6.59.5+6.50.50.351.6+0.353.40.258.6411、 1/23/45/124/512、 8/93/413、 17) 4/7 - ( 2/7 10/21 )18) 19 18 14 2/75、 1/22/56.72-3.28-1.720.45+6.37+4.55(4+0.40.25)871.251.6599+1.6510. 3/4 8/9 - 1/311. 7 5/49 +

6、3/1412. 6 ( 1/2 + 2/3 )27.85-(7.85+3.4)481.25+501.250.287.89.9+0.780.8+0.82.55. 63/8 3/8 1.253.682.5-12.52.42812.5-12.52023.65-(3.07+3.65)6. 4/7 5/9 + 3/7 5/97. 5/2 -( 3/2 + 4/5 )8. 7/8 + ( 1/8 + 1/9 )3914678268545.157/8+6.1-0.6062516. 5/9 18 14 2/725. 5/3 11/5 + 4/326. 45 2/3 + 1/3 1527. 7/19 + 12/

7、19 5/628. 1/4 + 3/4 2/334(58+37)(64-95)(64-45)39.(284+16()43.0.12 (9+3111)(136+64)()38.85+14()44.(3.21.5+2.5)(2)3.2(1.5+2.5 5.38+7.85-5.37=31.50 (58+370)(64-45)24. 9/22 + 1/11 1/2(3.7-2.9)+0.62(12-7.2)-6(4)1024.551+(2304-2042)4215+(4361-716(247+18)()(63-54)(528+912)5-617848.10.15-10.750.4-5.7(3.87-0

8、.13+4.23.7450.32.52-()2.551.7.1-5.6)0.9-1.15 8(201.25)1)127+352+73+443x(-9)+7x(-96-1.193-0.43=(12-7.2)-61.18.1(3)3.0.12 4.(3.21.5+2.5)(2)3.2(1.5+2.5 5.38+7.85-5.37=15.33.02148.490.8545.55(6.82)34.5217.8712.236.43-(1.4-0.57)0.681.9+0.321.98.10.15-10.750.4-5.7)285+(3000-372)1+5/6-19/129.5.8(3.87-0.13)

9、+4.23.7410.32.52-()2.511.7.1-5.6)0.9-1.15 (3.7-2.9)+0.6217.839.50.59999+9998+9997+99969999926+33333226783/4-3/5+4/5-4/6+5/6-5/7=?251.253215265357163237515632536721653/10+1=?125(80.80.08)35 78 (25 38 )(3.754.12.35)9.81.28+9.8+7.72+10.214+15+16+45+4689/90+123/124-234/235=?16. 5/9 18 14 2/717. 4/5 25/1

10、6 + 2/3 3/418. 14 8/7 5/6 12/1519. 17/32 3/4 9/2420. 3 2/9 + 1/35)0.3=1.02 6.4=28+4.45/3+7/2=?11. 7 5/49 + 3/146/7-8/3=?63/8 3/8 9/8-6/5+3/1=?3/2-6/3+5/2-4/3=?8/5-7/3+9/2+3/1=?4/7 5/9 + 3/7 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )21. 5/7 3/25 + 3/722. 3/14 2/3 + 1/623. 1/5 2/3 + 5/615. 9/7 - ( 2/7 1

11、0/21 )34(58+37)(64-95)(64-45)39.(284+16() 47.6.5(4.8-1.24)=0.681.9+0.321.943.0.12 44.(3.21.5+2.5)(2)3.2(1.5+2.5 5.38+7.85-5.37=48.10.15-10.750.4-5.7(3.87-0.13+4.23.7450.32.52-()2.51. 3/7 49/9 - 4/329. 8/7 21/16 + 1/230. 101 1/5 1/5 21(9+3111)(136+64)()38.85+14()18. 14 8/7 5/6 12/1519. 17/32 3/4 9/24

12、20. 3 2/9 + 1/326. 45 2/3 + 1/3 1527. 7/19 + 12/19 5/628. 1/4 + 3/4 2/35. 63/8 3/8 29. 8/7 21/16 + 1/230. 101 1/5 1/5 2131.506. 4/7 5/9 + 3/7 5/97. 5/2 -( 3/2 + 4/5 )8. 7/8 + ( 1/8 + 1/9 )9. 9 5/6 + 5/615. 9/7 - ( 2/7 10/21 )16. 5/9 18 14 2/724. 9/22 + 1/11 1/225. 5/3 11/5 + 4/317. 4/5 25/16 + 2/3 3

13、/442.(6.8-6.80.55)8.543.0.12 50.32.52-()51.(136+64)()3.822.90.189.1 9.64.83.6 7.140.532.475.272.860.661.63 13.354.682.65 73.81.6413.85.3644.(3.21.5+2.5) (2)3.2(1.5+2.5)52. 47.87.45+8.80.398+0.36+3.64 15.75+3.590.59+14.25(9+3111)38.85+14()39.(284+16()53.(58+370(64-45) 5.38+7.85-5.37=6.94.83.1 0.4566.

14、223.78 15.89(6.755.8)*66-1.193-0.43=66.868.661.340.2516.24 (1.250.125)84.025.40.98 5.171.83.2 13.75(3.756.48)*63.6102 3.723.536.83.96.10.681.9+0.321.93.687.562.68 2.340.854.66 35.61.815.67.248.10.15-10.750.4-5.715.613.115.64.87.8780.52 4.90.941.(58+37)64-95)(3.87-0.13+4.23.744.8100.1 56.59.956.57.09

15、10.80.873.834.563.835.444.3612.58 9.7999.72.316+2.323+2.3 9.43-(6.28-1.57) 3.654.736.50.373.070.381.62 3.72.716.3 82.451.527.53.77.53.7 0.651013.20.2512.53.251.790.591.75 23.40.813.47.2 0.324034657 13.70.25 2.229.9+6.666.718.769.918.76 3.96.15.93.20.364.81.64 1.233.40.236.6 0.2536(45.93.140.6831.40.

16、0321010.87-0.918710.716.1-15.110.7 0.7919912.73.70.84) 36.541.764.54 0.250.735 4.2994.27.20.22.41.4 8.91.017.74(2.81.3)1.52.27.60.80.27.6 3.92.73.97.3 18 12.79.91.272.35+1.713+0.287+7.651.57+0.245+7.436.02+3.6+1.98 0.89100.1 146.512.50.960.8 10.49.60.5(2346.5)21(9.33.75.615.02-6.8-1.02 5.411-5.40.134+2.66+0.8661.27+3.9+0.73+16.1 7.54.96.50.8(4.31.25)3.129928.610128.30.8615.70.8614.7 2

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