22 1/5*1 2/3 + (2,04:1/70+14,82:1/60) + (1/4:0.025+4 3/8*16) : 1/10

22 1/5 * 1 2/3 + (2,04 : 1/70 + 14,82 : 1/60) + (1/4 : 0,025 + 4 3/8 * 16) : 1/10 = 1869.

1) 2,04 : 1/70 = 204/100 * 70 = (204 * 7 * 10) / (10 * 10) = (204 * 7) / 10 = 1428/10 = 142,8;

2) 14,82 : 1/60 = 1482/100 * 60 = (1482 * 6 * 10) / (10 * 10) = (1482 * 6) / 10 = 8892/10 = 889,2;

3) 142,8 + 889,2 = 1032;

4) 1/4 : 0,025 = 1/4 : 25/1000 = 1/4 * 1000/25 = 1000 / (4 * 25) = 1000/100 = 10;

5) 4 3/8 * 16 = 35/8 * 16 = (35 * 2 * 8) / 8 = 70;

6) 10 + 70 = 80;

7) 80 : 1/10 = 80 * 10 = 800;

8) 22 1/5 * 1 2/3 = 111/5 * 5/3 = (3 * 37 * 5) / (5 * 3) = 37;

9) 37 + 1032 = 1069;

10) 1069 + 800 = 1869.