4 per 5 kurang 2 per 3 6 per 8 kurang 2 per 4 3 per 5 kurang 1 per 3

6. 4/5 - 2/3

= 12/15 - 10/15

= 2/15


7. 6/8 - 2/4

= 6/8 - 4/8

= 2/8

= 1/4


8. 3/5 - 1/3

= 9/15 - 5/15

= 4/15


semoga membantu......

Semoga bermanfaat ya....