Question

Выполните действие: а) 3 1/12 + 4 7/12 в) 8 3/5 - 2/5 г) 4/9+ 7 1/9

Answer 1

a) =10 8/12=10 2/3
в) =8 1/5
г) = 7 5/9

Answer 2

3 1/12 + 4 7/12 = (3+4)+(1/12+7/12)=7 8/12
8 3/5 - 2/5 = 8+(3/5-2/5)= 8 1/5
4/9 + 7 1/9 = 7+(4/9+1/9) = 7/5/9