tentukan hasil dari a.3per8-1per4 b.7per30+3per20-4 1per4 c.7 1per3-6 7per8

A. ⅜ - ¼
= ⅛
B. 7/30 + 3/20 - 4 1/4
= 23/60 - 4 1/4
= -3 13/15
C. 7 1/3 - 6 7/8
= 11/24
Maaf ya kalo salah, semoga membantu :)

A.3/8-1/4=12\32-12/3=12/29
B.7/30+3/20-41/4=60/14+60/2-60/615=
C.71/3-6 7/8=