有理数经典加减乘除练习题

-1. 3/7 49/9 - 4/3 2. 8/9 15/36 + 1/27 3. 12 5/6 2/9 34. 8 5/4 + 1/4 5. 6 3/8 3/8 6 6. 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 + 5/610. 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 5/6 15. 9/7 - 2/7 10/21 16. 5/9 18 14 2/7 17. 4/5 25/16 + 2/3 3/4 18. 3 2/9 + 1/319. 17/32 3/4 9/24 20. 14 8/7 5/6 12/15 21. 5/7 3/25 + 3/722. 3/14 2/3 + 1/6 23. 1/5 2/3 + 5/6 24. 9/22 + 1/11 1/225. 5/3 11/5 + 4/3 26. 45 2/3 + 1/3 15 27. 7/19 + 12/19 5/628. 1/4 + 3/4 2/3 29. 8/7 21/16 + 1/2 30. 101 1/5 1/5 2131. 501604058+37064-45 32. 347+452-41605233. 178-14556+42 420+580-642128 34. 58+3764-9535. 9564-45 36. 0.12 4.80.120.55)8.538. 3.21.5+2.50.4-5.7 40. 369/33-(-54-31/15.5)41. 5.83.87-0.13+4.23.74 42. 123+456+789+98/(-4) 43. 9*8*7/5*(4+6)44. -3.75+(+5/4)+(-1.5) 45. (-17/4)+(-10/3)+(+13/3)+(11/3) 46. (+1.3)- (+17/7)47. (-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4) 48. |(-5/4)-(-3/4)| - |1-5/4-|-3/4|)49. (-2/199)(-7/6-3/2+8/3) 50. | (-7.2)-(-6.3)+(1.1)| 51. 0.1253.22.5 52. 5.43.083.63.083.08 53. 6.14.60.810.454.6.14.60.810.4 55. 1.6(127.2)(0.842.1)56. (12+23.10.75)0.45.12 57. -14.43.08(-5.4)3.083.08 58. -2/9-7/9-56 59. 4.6-(-3/4+1.6-4-3/4) 60. 2/3-4-1/4(-0.4)/1/3+261. 1/2-3+5/6+-7/12 62. (1/4-5/6+1/3+2/3)/1/263. 64. 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80. 81. 82. 83. 84. 85. 86. 87. 88. 89. 90. 91.92. 93. 94. 95. 96. 97.98 . 99. 100. 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. 112. 113. 114. 115. 116. 117. 118. 119. 120. 121. 122. 123. 124. 125. 126. 127. 128. 129. . z.