The whole number 3 stands on it's own. You take the decimal portion and figure out what the last decimal place is. 10s, 100s, etc. then take the number, in this case 3125 and put it over that number you came up with. In short 10,000. From there you reduce it as far as possible without having a fraction of a fraction.
From this point you should be able to arrive at the answer on your own.
Write as a fraction in simplest form
-0.45 as a fraction in its simplest form is -9/20
0.49 written as a fraction in simplest form is 49/100
6.12 as a fraction in its simplest form is 6 3/25.
It is: 47/100 in its simplest form
Write as a fraction in simplest form
It is as a fraction in its simplest form: 11/16
0.196 as a fraction in simplest form is 49 ------ 250
0.32 as a fraction in simplest form = 8/25
0.84 as a fraction in simplest form = 21/25
3.1818 as a fraction in simplest form = 15909/5000
0.31 as a fraction in simplest form = 31/100
-0.45 as a fraction in its simplest form is -9/20
It is: -0.075 = -3/40 as a fraction in its simplest form
0.70 = 7/10 as a fraction in its simplest form
0.3 = 3/10 as a fraction in its simplest form
0.25 = 1/4 as a fraction in its simplest form