9%
70% or 0.7
675 = 3^3*5^2
4% = 4/100 = 0.04
27/40
Do you mean 675/10,000,000 then if so it is: 6.75*10-5
675 000 000 in scientific notation is 6.75*108
0.5 as a precent?
1/10 as a precent
It is already in Hindu-Arabic numerals
675/1,000 = 135/200 = 27/40
675 = 3 x 3 x 3 x 5 x 5 or 33 x 52