No 7 & 8 Mohon dibantu Harus dikumpulin

1.
1 - 1/3 = 2/3

1 - 1/2 = 1/2
1 - 1/6 = 5/6

= 2/3 x 1/2 x 5/6 = 10/36 = 5/18


2.
= 3/2 x 6/5 =18/10 = 9/5
= 15/4 - 9/5
KPK = 20

= 75/20 - 36/20 = 39/20 = 1 19/20