(11/40:33/26)*35/39=(11/40*26/33)*35/39=7/36
1)11/40*26/33=1/40*26/3=1/20*13/3=13/60
2)13/60*35/39=1/60*35/3=1/12*7/3=7/36
p.s.1 целая семь двадцать шестых=26/33
11/40:1 7/26 *35/39 = 11/40:33/26*35/39 = 11/40*26/33*35/39 = 13/60*35/39 = 7/36
(11/40:33/26)*35/39=(11/40*26/33)*35/39=7/36
1)11/40*26/33=1/40*26/3=1/20*13/3=13/60
2)13/60*35/39=1/60*35/3=1/12*7/3=7/36
p.s.1 целая семь двадцать шестых=26/33
11/40:1 7/26 *35/39 = 11/40:33/26*35/39 = 11/40*26/33*35/39 = 13/60*35/39 = 7/36