2: 1/4+((1целая1/2+2целых2/3): 3целых3/4-2/3): 8целых8/9 решите !

2 ÷ 1/4 + ((1 1/2 + 2 2/3) ÷ 3 3/4 - 2/3) ÷ 8 8/9 =
= 2 ÷ 1/4 + ((25/6) ÷ 3 3/4 - 2/3) ÷ 8 8/9 =
= 2 ÷ 1/4 + (10/9 - 2/3) ÷ 8 8/9 = 2 ÷ 1/4 + (4/9) ÷ 8 8/9 =
= 8 + (4/9) ÷ 8 8/9 = 8 + 1/20 = 161/20 =
= 8 1/20