Nomor 2 dan 3 tolongg ಠ_ಠ

2. 15/10 – 1/4 = 60/40 – 10/40 = 50/40 m / 1 1/4

3. 2 3/4 – 17/10 = 2 30/40 – 68/40 = 90/40 – 68/40 = 22/40 / 11/20

Periksa lagi ya kak!!!