Hasilx berapa,tolong dibantu

2 3/4 – (1 1/2 ÷ 1 1/5)

(4×2+3) – (2×1+1 ÷ 5×1+1)

11/4 – (3/2 ÷ 6/5)

11/4 – (3/2 × 5/6)

11/4 – (3×5/2×6)

11/4 – 15÷3/12÷3

11/4 – 5/4

6÷2/4÷2

3/2 = 1 1/2 (b)