(2 5/6 + 2 2/9) : 3 1/4 - 2/9 = 1 1/3
1) 2 5/6 + 2 2/9 = 273/54 = 5 3/54
2) 5 3/54 : 3 1/4 = 4/19 = 1 5/9
3) 1 5/9 - 2/9 = 1 3/9 = 1 1/3
Пошаговое объяснение:
2/5+1 83/100=2 23/100
6 4/10-3/20=6 1/4
9 8/10×3/10=2 47/50
7 2/10÷1/100=720