2y 4 — - — = y 3y 4 6 — + — = 3p 5pq

nomor 1
2y/y - 4/3y
= 6y/3y - 4/3y
= (6y - 4)/3y

nomor 2
4/3p + 6/5pq
= 20q/15pq + 18/15pq
= (20q + 18)/15pq

semoga terbantu :)