Question

1) 7/ 8 + 1 3/8 - 5/8
2) 2 1/3 - 2 + 5 1/3
3) 3 6/11 + 5/11 - 2 2/11
4) 7 1/7 - 1 3/7 - 3 5/7
5) 4 3/5 + 4/5 + 1 2/5
( / это дробь)

Answer 1

1)=1 1/8
2)=5 2/3
3)=1 9/11
4)=6 8/7-4 8/7=2
5)=5 9/5=6 4/5

Answer 2

1) ( 7/8 ) + 1 ( 3/8 ) - ( 5/8 ) = 1 ( 10/8 ) - ( 5/8 ) = 1 ( 5/8 ) : ОТВЕТ : 1 ( 5/8 ) ; 2) 2 ( 1/3 ) - 2 + 5 ( 1/3 ) = ( 1/3 ) + 5 ( 1/3 ) = 5 ( 2/3 ) ; ОТВЕТ 5 ( 2/3 ) ; 3) 3 ( 6/11 ) + ( 5/11 ) - 2 ( 2/11 ) = 3 ( 11/11 ) - 2 ( 2/11 ) = 1 ( 9/11 ) ; ОТВЕТ 1 ( 9/11 ) ; 4) 7 ( 1/7 ) - 1 ( 3/7 ) - 3 ( 5/7 ) = 7 ( 1/7 ) - 4 ( 8/7 ) = 7 ( 1/7 ) - 5 ( 1/7 ) = 2 ; ОТВЕТ : 2 5) 4 ( 3/5 ) + ( 4/5 ) + 1 ( 2/5 ) = 4 ( 7/5 ) + 1 ( 2/5 ) = 5 ( 2/5 ) + 1 ( 2/5 ) = 6 ( 4/5 ) ; ОТВЕТ : 6 ( 4/5 )