(11/12+11/4)*119/56+25/8*13/7*11/9.
1) 11/12 = 0,9166.
2)11/4 = 2,75
3)0,9166 + 2,75 = 3,6666.
4)3,6666 * 199 = 729,6534.
5)729,6534/56 = 13,0295.
6)25/8 = 3,125.
7)3,125*13 = 40,625.
8)40,625/7 = 5,8035.
9)5,8035*11 = 63,8385.
10)63,8385/9 = 7,0931.
11)13,0295 + 7,0931 = 20,1226.