Какое решение 11-11/20+13 7/20
11 - 11/20 + 13 7/20 = 11 - 11/20 + 267/20 =(11 × 20 - 11 × 1 + 267 × 1)/20 = 220/20 - 11/20 + 267/20 = 476/20 = 119/5 = 23 4/5=23,8