Сравните дроби 2/9 и 5/9 7/18 и 7/11

2/9 меньше 5/9 7/18меньше 1/11

Сантиметр квадратный

1)210+350=560
2)386
3)12:5=2.4
2.4*3=7.2

7/9×15/56 = 5/24

1 9/35×3 9/11 = 44/35 * 42/11 = 24/5 = 4 4/5

(5/13+8/13)×21/29= 1 * 21/29 = 21/29


34 5/7-1 3/16×8/13×1 1/38 = 34 5/7 - (19 * 8 * 39)/(16 * 13 * 38) = 34 5/7 - 3/4 = 34 20/28 - 21/28 = 33 27/28