§ 5. Звичайні дроби » 1053

Порівняйте числа: 1) 81/9 > 75/9; 81/9 = (72 + 1)/9 = 73/9 ; 75/9 = (63 + 5)/9 = 68/9 ; 73/9 > 68/9 2) 517/50 < 523/50; 517/50 = (250 + 17)/50 = 267/50 ; 523/50 = (250 + 23)/50 = 273/50 ; 267/50 < 273/50 3) 93/11 < 10; 93/11 = (99 + 3)/( 11) = 102/11 ; 10 = 110/11 ; 102/11 < 110/11 4) 9 < 93/20; 93/20 = (180 + 3)/20 = 183/20 ; 9 = 180/20 ; 180/20 < 183/20