10 - 2 1/3 : 3 3/4 + (2 1/6 - 1 1/3) * 6 = 14 17/45
1) 2 1/6 - 1 1/3 = 2 1/6 - 1 2/6 = 1 7/6 - 1 2/6 = 5/6
2) 2 1/3 : 3 3/4 = 7/3 : 15/4 = 7/3 * 4/15 = 28/45
3) 5/6 * 6 = 5
4) 10 - 28/45 = 9 45/45 - 28/45 = 9 17/45
5) 9 17/45 + 5 = 14 17/45
4,8 - 5 2/5 : 1 4/5
------------------------ = 1,8 / 3,15 = 5,67
2,4 * 7/8 * 1,5
1) 5 2/5 : 1 4/5 = 27/5 : 9/5 = 27/5 * 5/9 = 3
2) 4,8 - 3 = 1,8
3) 2,4 * 7/8 = 24/10 * 7/8 = 3/10 * 7/1 = 21/10 = 2,1
4) 2,1 * 1,5 = 3,15
5) 1,8 * 3,15 = 5,67