Срочно!!!
1) 3 1/2*(1,6*1/24*5,25):(47*1 2/47:10)

2) 2 4/13:(2:(93,5*20/51:11)):10/13*0,04

большое спасибо!

Да не за что..)) Обращайтесь.

1) 3 1/2 * (1,6 * 1/24 * 5,25) : (47 * 1 2/47 : 10) = 0,251,6 * 1/24 = 16/240 = 1/151/15 * 5,25 = 1/15 * 21/4 = 21/603 1/2 * 21/60 = 7/2 * 21/60 = 147/12047 * 1 2/47 = 47 * 49/47 = 4949 : 10 = 4,9147/120 : 4,9 = 147/120 * 10/49 = 3/12 = 1/4 = 0,252) 2 4/13 : (2 : (93,5 * 20/51 : 11)) : 10/13 * 0,04 = 0,293,5 * 20/51 = 935/10 * 20/51 = 1870/51 = 36 2/336 2/3 : 11 = 110/3 * 1/11 = 10/3 = 3 1/32 : 3 1/3 = 2 * 3/10 = 6/10 = 3/52 4/13 : 3/5 = 30/13 * 5/3 = 50/1350/13 : 10/13 = 50/13 * 13/10 = 55 * 0,04 = 0,2