如题所述
1. 3/7Ã49/9 - 4/3= 2. 8/9Ã15/36ï¼1/27= 3. 12Ã5/6ï¼2/9Ã3= 4. 8Ã5/4ï¼1/4= 5. 6÷3/8ï¼3/8÷6= 6. 4/7Ã5/9 + 3/7Ã5/9= 7. 5/2ï¼(3/2 + 4/5)= 8. 7/8 +(1/8 + 1/9)= 9. 9Ã5/6 + 5/6= 10. 3/4Ã8/9ï¼1/3= 11. 7Ã5/49 + 3/14= 12. 6Ã(1/2 + 2/3)= 13. 8Ã4/5 + 8Ã11/5= 14. 31Ã5/6ï¼5/6= 15. 9/7ï¼(2/7ï¼10/21)= 16. 5/9Ã18ï¼14Ã2/7= 17. 4/5Ã25/16 + 2/3Ã3/4= 18. 14Ã8/7ï¼5/6Ã12/15= 19. 17/32ï¼3/4Ã9/24= 20. 3Ã2/9 + 1/3= 21. 5/7Ã3/25 + 3/7= 22. 3/14Ã2/3 + 1/6= 23. 1/5Ã2/3 + 5/6= 24. 9/22 + 1/11÷1/2= 25. 5/3Ã11/5 + 4/3= 26. 45Ã2/3 + 1/3Ã15= 27. 7/19 + 12/19Ã5/6= 28. 1/4 + 3/4÷2/3= 29. 8/7Ã21/16 + 1/2= 30. 101Ã1/5ï¼1/5Ã21= 31. (2/3ï¼2/9)Ã(5/8ï¼7/16)= 32. 2/5Ã3/4ï¼1/2÷4= 33. [8/15ï¼(7/12ï¼2/5)]Ã15/14= 34. 5/6+5/3Ã4/5= 35. 5/8ï¼1/4Ã(8/9÷2/3)= 36. (1/2-1/6)Ã3/5÷1/5= 37. 1/6÷[9/17Ã(3/4+2/3)]= 38. 11/12-1/4+3/10÷3/5= 39. 2/3÷[(3/4-1/2)Ã4/5]= 40. 2/5+4/15-2/5= 41. 6/7Ã5/8+3/8÷7/6= 42. (7/11-3/8)Ã88= 43. 13-48Ã(1/12+1/16)= 44. 4/5÷3+2/3Ã4/5= 45. 2/5+1/2Ã3/5+7/10= 46. 12/13Ã3/7ï¼4/7Ã12/13ï¼12/13= 47. (7/8-5/16)Ã(5/9+2/3)= 48. 8/13÷7ï¼1/7Ã6/13= 49. [1-(1/4+3/8)]÷1/4= 50. 7/9÷11/5ï¼2/9Ã5/11=
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