(0,4 : 1,25 + 1,4 * 7/11 - 3/11) *4 1/8 = 3,87
1) 0,4 : 1,25 = 0,32
2) 1,4 * 7/11 = 14/10 * 7/11 = 98/110 = 49/55
3) 0,32 + 49/55 = 8/25 + 49/55 = 88/275 + 245/275 = 333/275
4) 333/275 - 3/11 = 333/275 - 75/275 = 258/275
5) 258/275 * 4 1/8 = 258/275 * 33/8 = (129*3)/(25*4) = 387/100 = 3,87