Kak mohon dibantu besok udah harus dikumpul....

3. (2/3 + 3/4) x (3/2 + 5/4)
= (8/12 + 9/12) x (16/12 + 15/12)
= 17/12 x 31/12
= 204/382 = 102/191

Sederhanakan sendiri , maaf kalo salah v:

4. (19/8 - 11/6) : (11/2 + 5/4)
= (57/24 - 44/24) : (22/4 + 5/4)
= 13/24 : 17/4
=13/24 x 4/17
= 13/102

Maaf kalo salah