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=?      ПЛиз нужно полное решение!!!

4 2/3 * 6 - 2 23/42 * 3 1/13 + 2 1/8 * 1 29/51 = 23 45/911) 4 2/3 * 6 = 14/3 * 6 = 282) 2 23/42 * 3 1/13 = 107/42 * 40/13 = 2140/273 = 7 229/2733) 2 1/8 * 1 29/51 = 17/8 * 80/51 = 10/3 = 3 1/34) 28 - 7 229/273 = 27 273/273 - 7 229/273 = 20 44/2735) 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 = 50/631) 3 4/5 * 13/38 = 19/5 * 13/38 = 13/10 = 1 3/102) 5 3/10 - 1 3/10 = 4 3) 4 * 5/84 = 20/84 = 5/214) 2 1/12 * 4/15 = 25/12 * 4/15 = 5/95) 5/21 + 5/9 = 15/63 + 35/63 = 50/63