Сократите дроби а )12/30 24 /60 35 /105 б )55/ 77 81/ 270 75/ 450 135/ 180 в )140/ 210 105 /165 144/ 360 240/ 560 г) 30 /150 80 /200 21/ 36 91 /108

Дроби упрощены: а) 12/30 = 2/5, 24/60 = 2/5, 35/105 = 1/3 б) 55/77, 81/270 = 3/10, 75/450 = 1/6, 135/180 = 3/4 в) 140/210 = 2/3, 105/165 = 7/11, 144/360 = 2/5, 240/560 = 3/7 г) 30/150 = 1/5, 80/200 = 2/5, 21/36 = 7/12, 91/108 = 7/9.