帮我出20道分数简算题(加减法)!
1个回答

1. 1/5+1/25+(1/6-3/5)

2. 7/36+5/6-2/9

3. 5/44-(7/30-2/11)+1/2

4. 1/2+1/3+1/4+1/5+1/6

5. 1+1/2+1/6+1/12+1/20+1/30+1/42

6. 2/35-3/5-6/7

7. 4/23+4/21+5/46-1/42

8. 1/7+1/77+1/777+1/7777

9. 5/6-3/4+7/9

10. 99/100+100/99

11. 22/5-4/47+34/55

12. 11/23+2/46-11/34

13. 1/2+2/3+3/4

14. 44/3+25/6

15. 1/5-2/3-4/7

16. 22/18+11/23-31/6

17. 2/5-4/(5+6+7)-2/7

18. 18/3-36/6+12/5

19. 8/9+1/7+2/27

20. 1/100+3/2-23/46