tolong bantu jawab nomer 14,15,16 pakai cara besok dikumpulin.makasih

16. 0,6 + 1/2 : (2/3 - 0,25) × 1 4/5
= 6/10 + 1/2 : (2/3 - 25/100) × 9/5
= 3/5 + 1/2 : (2/3 - 1/4) × 9/5
= 3/5 + 1/2 : (8/12 - 3/12) × 9/5
= 3/5 + 1/2 : 5/12 × 9/5
= 3/5 + 1/2 × 12/5 × 9/5
= 3/5 + 6/5 × 9/5
= 15/25 + 54/25 = 69/25 = 2 19/25 (C)