tolong di jawab ya,,,,,,

a. 7¾-3⅜
= 7 6/8 - 3⅜
= 4⅜
b. 2 5/16-1¼
= 2 5/16- 1 4/16
= 1 1/16
c. 9 4/5- 4 3/5
= 5 1/5
d. 21⅛-11 1/16
= 21 2/16- 11 1/16
= 10 1/16
e. 15 11/12-11½
= 15 11/12- 11 6/12
= 4 5/12

semoga membantu!
kalo kurang paham, pc aja....