(3,6-1 2/3): (4 1/15-2 7/9)*2,6= по действиям например 1)3,6-1 2/3= и т.д /-дробь

1) 3,6 - 1 2/3 = 3 3/5 - 1 2/3 = 3 9/15 - 1 10/15 = 2 24/15 - 1 10/15 = 1 14/15
2) 4 1/15 - 2 7/9 = 4 9/135 - 2 105/135 = 3 144/135 - 2 105/135 = 1 39/135 = 1 13/45
3) 1