8 15/30 - 3 20/30 = Pakai cara pecahan campuran! Kalo ada gue kasih yg terbaik!

8 15/30 - 3 20/30 =
8×30+15/30 = 255/30
3×30+20/30=110/30
jadi 255/30 - 110/30
= 145/30
= 4 25/30
=4 5/6

semoga membantu

8 15/30 - 3 20/30=
(8×30)+15 = 255/30
(3×30)+20 = 110/30
255/30 - 110/30 = 145/30 atau 4 5/6