Question

Номер 10 помогите пж

Answer 1

Ответ:

А) 2 целые 5/9 , б) 2 , в )1  , г) 1 целая 2/3

Пошаговое объяснение:

А) 5/12 + 7/36 + 11/12 + 17/36 = (5/12 + 11/12 ) + ( 7/36 + 17/36 ) = 16/12 + 24/36 = 48/36 + 24/36 = 92/36 = 2 целые 5/9

Б) 3/7 + 14/19 + 4/7 + 5/19 = ( 3/7 + 4/7 ) + ( 14/19 + 5/19 ) = 1+1=2

В) 9/40 + 13/50 + 12/50 + 11/40 = ( 9/40 + 11/40) + ( 13/50 + 12/50 ) = 20/40 + 25/50 = 1/2+1/2 = 2/2 = 1

Г) 13/18 + 4/81 + 7/18 + 41/81 = ( 13/18 + 7/18 ) + ( 4/81 + 41/81 ) = 20/18 + 45/81 = 1 целая 2 /18 + 5/9 = 1 целая 6/9 = 1 целая  2/3