(1,02 : 1/50 - 7,26 : 11/70) : 3 1/5 + 0,4 : 0,36 =
= (1,02*50 - 726/100 * 70/11) * 5/16 + 10/9 =
= (51 - 66*7/10) * 5/16 + 10/9 =
= (51 - 46,2) * 5/16 + 10/9 =
= 48/10 * 5/16 + 10/9 = 3/2 + 10/9 = 27/18 + 20/18 = 2 11/18
По действиям:
1) 1,02 : 1/50 = 1,02*50 = 51
2) 7,26 : 11/70 = 726/100 * 70/11 = 66*7/10 = 46,2
3) 51 - 46,2 = 4,8
4) 4,8 : 3 1/5 = 48/10 * 5/16 = 3/2
5) 0,4 : 0,36 = 40 : 36 = 1 1/9
6) 3/2 + 10/9 = 27/18 + 20/18 = 47/18 = 2 11/18