Найдите значение выражений 4 2/3*6-2 23/42*3 1/13+2 1/8*1 29/51=? 2) (5 3/10-3 4/5*13/38)*5/84+2 1/12*4/15=? нужно полное !

4 2/3 * 6 - 2 23/42 * 3 1/13 + 2 1/8 * 1 29/51 = 23 45/91

1) 4 2/3 * 6 = 14/3 * 6 = 28

2) 2 23/42 * 3 1/13 = 107/42 * 40/13 = 2140/273 = 7 229/273

3) 2 1/8 * 1 29/51 = 17/8 * 80/51 = 10/3 = 3 1/3

4) 28 - 7 229/273 = 27 273/273 - 7 229/273 = 20 44/273

5) 20 44/273 + 3 1/3 = 20 44/273 + 3 91/273 = 23 135/273 = 23 45/91

(5 3/10 - 3 4/5 * 13/38) * 5/84 + 2 1/12 * 4/15 = 50/63

1) 3 4/5 * 13/38 = 19/5 * 13/38 = 13/10 = 1 3/10

2) 5 3/10 - 1 3/10 = 4 

3) 4 * 5/84 = 20/84 = 5/21

4) 2 1/12 * 4/15 = 25/12 * 4/15 = 5/9

5) 5/21 + 5/9 = 15/63 + 35/63 = 50/63