tolong dibantu dengan caranya

2 1/2 : 1 2/3 + 2 3/4 × 1 1/3
= 5/2 : 5/3 + 11/4 × 4/3
= 5/2 : 3/5 + 11/4 × 4/3
= 15/10 + 44/12
= 90/60 + 220/60
= 310/60
= 5 10/60
= 5 1/6

Semoga bisa membantu...