tolobg ya pliss ya kak

1) 2 2/6 + 3 4/9
= (2+3) (6/18 + 8/18)
= 5 14/18
= 5 7/9

2) 17,81 + 23,14 = 40.95

3) 14 4/6 - 5 1/8
= (14-5) (32/48 - 6/48)
= 9 26/48
= 9 13/24

4) 3/8 : 1/2 : 4/6
= (3/8 x 2/1) : 4/6
= 6/8 x 6/4
= 36/32
= 1 4/32
= 1 1/8

5) 3,25 + 1,75 - 2,5 = 2,5

6) 1/5 x 3/8 x 4/6
= 3/40 x 4/6
= 12/240
= 1/20

7) 1/5 x 10% + 5 49/50
= (1/5 x 10/100) + 299/50
= 10/500 + 299/50
= 10/500 + 2990/500
= 3000/500
= 30/5
= 6

8) [1/2 x 3/5 ] : 3 + 2/3
= [3/10 x 3] + 2/3
= 9/30 + 2/3
= 9/30 + 20/30
= 29/30