tolong di bantu yaa nmr 1-9 dengan caranya

1. = 7/8 - 3/6 + 2/4
= 21/24 - 12/24 + 12/24
= 21/24
= 7/8

2. = 9/12 - 2/4 + 1/6
= 9/12 - 6/12 + 2/12
= 5/12

3. = 8/10 - 2/5 + 1/3
= 24/30 - 12/30 + 10/30
= 22/30
= 11/15

4. = 12/18 - 1/2 + 2/6
= 12/18 - 9/18 + 6/18
= 9/18
= 1/2

5. = 12/24 - 5/12 + 1/2
= 12/24 - 10/24 + 12/24
= 14/24
= 7/12

6. = 7/12 + 3/8 - 1/3
= 14/24 + 9/24 - 8/24
= 15/24
= 5/8

7. = 2/6 + 3/5 - 4/10
= 10/30 + 18/30 - 12/30
= 16/30
= 8/15

8. = 13/15 + 3/10 - 1/3
= 26/30 + 9/30 - 10/30
= 25/30
= 5/6

9. = 2/7 + 1/3 - 5/21
= 6/21 + 7/21 - 5/21
= 8/21