28,8:0,24+ 12 3/4=...

28,8:0,24 + 12 3/4
= 288/10 : 24/10 + 51/4
= 288/10 × 10/24 + 51/4
= 2880/240 + 51/4
= 12/1 + 51/4
= 99/4
= 24 3/4 (24,75) → hasil akhir

*maaf kalau salah
*semoga membantu :)