4 3//10-1 11//15=43//10-26//15=77//30=2 17//30
// - черта дроби
4 3/10 - 1 11/15 = 4 9/30 - 1 22/30= 3 39/30 - 1 22/30 = 2 17/30
4 3//10-1 11//15=43//10-26//15=77//30=2 17//30
// - черта дроби
4 3/10 - 1 11/15 = 4 9/30 - 1 22/30= 3 39/30 - 1 22/30 = 2 17/30