【分数乘法口算50题】在数学学习中，分数乘法是基础运算之一，掌握好这一部分有助于提高整体的数学能力。为了帮助学生更好地练习和巩固分数乘法的知识，下面整理了50道适合口算训练的题目，涵盖不同难度层次，适合课后练习或课堂测试。

分数乘法口算50题（附答案）

1. 1/2 × 1/3 =

2. 2/3 × 1/4 =

3. 3/4 × 2/5 =

4. 5/6 × 3/7 =

5. 1/2 × 3/4 =

6. 2/5 × 4/7 =

7. 3/8 × 2/3 =

8. 4/9 × 1/2 =

9. 5/7 × 2/3 =

10. 1/3 × 5/6 =

11. 2/7 × 3/5 =

12. 3/5 × 4/9 =

13. 4/7 × 5/8 =

14. 1/4 × 3/5 =

15. 2/3 × 5/8 =

16. 3/4 × 7/9 =

17. 5/6 × 2/7 =

18. 7/8 × 1/3 =

19. 2/9 × 3/4 =

20. 4/5 × 3/7 =

21. 1/2 × 2/3 =

22. 3/4 × 1/2 =

23. 5/6 × 1/2 =

24. 2/3 × 3/5 =

25. 4/5 × 1/2 =

26. 3/7 × 2/3 =

27. 5/8 × 3/4 =

28. 7/9 × 2/5 =

29. 2/5 × 5/6 =

30. 3/8 × 4/5 =

31. 1/3 × 2/5 =

32. 2/7 × 5/6 =

33. 4/5 × 2/3 =

34. 3/6 × 1/2 =

35. 5/9 × 2/3 =

36. 7/10 × 1/2 =

37. 2/3 × 3/4 =

38. 3/5 × 5/7 =

39. 4/7 × 3/8 =

40. 5/8 × 2/5 =

41. 1/2 × 4/5 =

42. 2/3 × 3/4 =

43. 3/4 × 5/6 =

44. 4/5 × 3/8 =

45. 5/6 × 2/5 =

46. 6/7 × 1/2 =

47. 7/8 × 2/3 =

48. 1/5 × 3/4 =

49. 2/5 × 7/9 =

50. 3/7 × 4/5 =

答案参考：

1. 1/6

2. 1/6

3. 3/10

4. 15/42 = 5/14

5. 3/8

6. 8/35

7. 1/4

8. 2/9

9. 10/21

10. 5/18

11. 6/35

12. 12/45 = 4/15

13. 20/56 = 5/14

14. 3/20

15. 10/24 = 5/12

16. 21/36 = 7/12

17. 10/42 = 5/21

18. 7/24

19. 6/36 = 1/6

20. 12/35

21. 1/3

22. 3/8

23. 5/12

24. 6/15 = 2/5

25. 4/10 = 2/5

26. 6/21 = 2/7

27. 15/32

28. 14/45

29. 10/30 = 1/3

30. 12/40 = 3/10

31. 2/15

32. 10/42 = 5/21

33. 12/15 = 4/5

34. 3/12 = 1/4

35. 10/27

36. 7/20

37. 6/12 = 1/2

38. 15/35 = 3/7

39. 12/56 = 3/14

40. 10/40 = 1/4

41. 4/10 = 2/5

42. 6/12 = 1/2

43. 15/24 = 5/8

44. 12/40 = 3/10

45. 10/30 = 1/3

46. 6/14 = 3/7

47. 14/24 = 7/12

48. 3/20

49. 14/45

50. 12/35

通过反复练习这些题目，可以帮助学生提高对分数乘法的理解与计算速度。建议在做题过程中注意约分和通分，逐步培养良好的数学思维习惯。