tolong jawab pertanyaan no 6 - 10

6. 42,75-15,8-16,24 = 10,71
7. 0,45+0,60+0,67 = 1,72 ( 45% = 0,45. 3/5 = 0.60)
8. 11/3 + 3/5 disamakan penyebutnya jadi 55/15 + 9/15 = 64/15 = 4 4/15
9. 19/4+7/3-5/6 = 57/12 + 28/12 - 10/12 =85/12 = 7 1/12
10. 4,25-0,625+ 2,67 = 6,295