pake cara tolong doonk no 5-10

1.1/2dikali 100=0,50
4/5dikali100=0,80
1/3=0,33
6/7=0,85
6/7;4/5;1/2;1/3

6. a. 0.7 = 7/10
b. 0.65 = 65/100 -> 65:5/100:5 = 13/20
c. 0.6 = 6/10 -> 6:2/10:2 = 3/5
d. 0.72 = 72/100 -> 72:4/100:4 = 18/25

8. 0.45 = 45/100 -> 45:5/100:5 = 9/20
10. Besar keuntungan = 15% x 1.500.000
= 15/100 x 1.500.000
= Rp 225.000
harus dijual sebesar
= Rp 1.500.000 + Rp 225.000
= Rp 1.725.000