tolong bantu jawab pake caranya .......

1] 5 x 0,7
= 3,5

2] 8 1/2 x 1/8
= 17/2 x 1/8
= 17/16

3] 0,85 - 2/5
= 85/100 - 2/5
= 225/100 = 45/100 = 9/20

4] 22,5 : 1,2
= 18,75

5] 6,5 - 1/3
= 65/10 - 1/3
= 180/30 = 18/3= 6/1