pls ya pakai cara terima kasih No 13

4 1/2 - 2 3/4
= 9/2 - 11/4
= 18/4 - 11/4
= 7/4
= 1 3/4 liter

4 1per2 - 2 3per4 = 4 2per4 - 2 3per4 = 2 1per4 liter maaf kalo salah