Ответ:

Пошаговое объяснение:

1)

10. 5/18 - 5. 8/27 =

10. 15/54 - 5. 16/54 =

9. 69/54 - 5. 16/54 =

4. 53/54

2)

32. 8/21 - 23. 7/15 =

32. 40/105 - 23. 49/105 =

31. 145/105 - 23. 49/105 =

8. 96/105 = 8. 32/35

3)

41. 9/28 - 15. 2/21 =

41. 27/84 - 15. 8/84 =

26. 19/84

3)

58. 11/20 - 22. 29/35 =

58. 77/140 - 22. 116/140 =

57. 217/140 - 22. 116/140 = 35. 101/140