(( 0,5 : 1,25 + 7/5 : 1 4/7 - 3/11) * 3) / (1,5 + 1/4) /18 1/3 = 32
1) 0,5 : 1,25 = 0,4 = 4/10 = 2/5
2) 7/5 : 11/7 = 49/55
3) 2/5 + 49/55 = 22/55 + 49/55 = 71/55
4) 71/55 - 3/11 = 71/55 - 15/55 = 56/55
5) 56/55 * 3 = 168/55
6) 1,5 = 1 5/10 = 1 1/2 = 3/2
3/2 + 1/4 = 6/4 + 1/4 = 7/4
7) 7/4 : 18 1/3 = 7/4 : 55/3 = 21/220
8) 168/55 : 21/220 = 672/21 = 32