10-3цілих3/4•(2цілих1/3+1ціла2/5): 1ціла5/9 напишіть

10 - 3 3/4 * (2 1/3 + 1 2/5) : 1 5/9 = 1
1) 2 1/3 + 1 2/5 = 2 5/15 + 1 6/15 = 3 11/15
2) 3 3/4 * 3 11/15 = 15/4 * 56/15 = 14
3) 14 : 1 5/9 = 14 : 14/9 = 9
4) 10 - 9 = 1