Напишите полное решение, (2 2/3 + 1 5/6) : (3 2/5 - 1 11/15)=

1) 2 2/3 + 1 5/6 = 2 4/6 + 1 5/6 = 3 9/6 = 4 3/6 = 4 1/2
2) 3 2/5 - 1 11/15 = 3 6/15 - 1 11/15 = 2 21/15 - 1 11/15 = 1 10/15 = 1 2/3
3) 4 1/2 : 1 2/3 = 9/2 : 5/3 = 27/10 = 2,7
ответ 2,7