7 3/4-(4 5/6-3 1/2)+1 2/3= (6 5/8-1/2)-(5 3/4-2 1/6)= 9 2/5-(8 1/3-7 1/4+5 1/6)= Заранее...

Question

7 3/4-(4 5/6-3 1/2)+1 2/3=
(6 5/8-1/2)-(5 3/4-2 1/6)=
9 2/5-(8 1/3-7 1/4+5 1/6)=
Заранее спасибо

Answer 1

1) 7 3/4- ( 4 5/6-3 1/2)+ 1 2/3
7 3/4-1 2/6+ 1 2/3= 7 3/4- 6 10/24= 1 8/24= 1 1/3
1 1/3+1 2/3= 2 3/3=3

2) (6 5/8-1/2)-(5 3/4- 2 1/6)+ 6 1/8- 3 14/24= 3 7/12= 3 1/3
6 1/8-3 1/3= 3 5/24

3) 9 2/5-( 8 1/3-7 1/4+5 1/6)= 9 2/5-8 6/24  = 9 2/5-8 1/4= 1 3/20