在小学数学的学习过程中，分数的加减法是学生必须掌握的基础内容之一。它不仅关系到后续数学知识的深入学习，也对培养学生的逻辑思维和计算能力有着重要作用。为了帮助五年级的学生更好地巩固这一知识点，下面整理了100道分数加减法练习题，涵盖同分母与异分母的加减运算，适合课后练习或家庭作业使用。
一、同分母分数加减法（共30题）
1. 1/4 + 2/4 =
2. 3/5 - 1/5 =
3. 2/7 + 3/7 =
4. 5/8 - 2/8 =
5. 4/9 + 1/9 =
6. 7/10 - 3/10 =
7. 3/6 + 2/6 =
8. 5/7 - 2/7 =
9. 1/3 + 1/3 =
10. 6/9 - 2/9 =
11. 2/5 + 2/5 =
12. 4/6 - 1/6 =
13. 3/4 + 1/4 =
14. 5/12 - 3/12 =
15. 7/10 + 1/10 =
16. 8/11 - 5/11 =
17. 2/3 + 1/3 =
18. 9/12 - 4/12 =
19. 5/8 + 3/8 =
20. 6/7 - 4/7 =
21. 1/2 + 1/2 =
22. 7/9 - 5/9 =
23. 4/5 + 1/5 =
24. 3/8 - 1/8 =
25. 2/4 + 2/4 =
26. 5/6 - 2/6 =
27. 6/10 + 2/10 =
28. 7/12 - 4/12 =
29. 3/5 + 2/5 =
30. 9/10 - 6/10 =
二、异分母分数加减法（共70题）
31. 1/2 + 1/3 =
32. 2/3 - 1/4 =
33. 3/4 + 1/2 =
34. 5/6 - 1/3 =
35. 1/2 + 3/4 =
36. 3/5 - 1/2 =
37. 2/3 + 1/6 =
38. 4/5 - 2/3 =
39. 1/4 + 3/8 =
40. 5/6 - 1/2 =
41. 2/5 + 1/10 =
42. 3/4 - 1/8 =
43. 1/3 + 2/6 =
44. 5/8 - 1/4 =
45. 2/7 + 1/3 =
46. 3/5 - 1/10 =
47. 1/2 + 3/5 =
48. 4/7 - 1/3 =
49. 2/3 + 1/4 =
50. 5/9 - 1/3 =
51. 3/8 + 1/4 =
52. 7/10 - 2/5 =
53. 1/5 + 2/10 =
54. 3/4 - 1/6 =
55. 2/5 + 3/10 =
56. 5/6 - 1/4 =
57. 1/2 + 2/5 =
58. 3/7 - 1/4 =
59. 4/9 + 1/3 =
60. 5/8 - 3/4 =
61. 1/3 + 3/6 =
62. 2/5 - 1/10 =
63. 3/4 + 1/5 =
64. 7/10 - 3/5 =
65. 2/3 + 1/5 =
66. 5/6 - 2/3 =
67. 1/2 + 3/8 =
68. 4/5 - 1/2 =
69. 3/4 + 1/6 =
70. 5/7 - 1/2 =
71. 2/3 + 1/5 =
72. 3/4 - 1/5 =
73. 1/2 + 1/5 =
74. 5/6 - 1/2 =
75. 3/8 + 1/2 =
76. 7/10 - 1/5 =
77. 2/5 + 1/3 =
78. 4/7 - 1/2 =
79. 1/3 + 2/5 =
80. 5/8 - 1/4 =
81. 3/5 + 1/4 =
82. 2/3 - 1/6 =
83. 1/2 + 3/5 =
84. 7/9 - 2/3 =
85. 2/5 + 3/10 =
86. 4/5 - 1/3 =
87. 1/4 + 3/5 =
88. 5/6 - 1/3 =
89. 3/7 + 1/2 =
90. 6/7 - 2/3 =
91. 1/2 + 1/4 =
92. 3/5 - 1/10 =
93. 2/3 + 1/4 =
94. 5/8 - 1/2 =
95. 4/7 + 1/3 =
96. 7/10 - 1/2 =
97. 1/3 + 2/5 =
98. 5/6 - 2/5 =
99. 2/5 + 3/10 =
100. 3/4 - 1/5 =
小贴士：
- 在进行异分母分数加减时，首先要找到两个分母的最小公倍数作为公分母。
- 计算完成后，记得将结果约分成最简分数。
- 如果结果为假分数，可以将其转化为带分数形式。
通过反复练习这些题目，孩子们可以逐步提高分数运算的准确性和速度，打下坚实的数学基础。希望这份练习题能对大家有所帮助！
