One way to convert decimals to fractions is to say them out loud. 0.45 is forty-five hundredths, or 45/100. We reduce fractions by taking the GCF of the numerator and denominator. The GCF of 45 and 100 is 5. Divide both numbers by 5 and get 9/20.
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Convert the absolute value of the decimal to a fraction and then put a minus sign before it.
To convert a fraction to a decimal, divide the denominator into the numerator. Decimals don't have remainders.
1/2
convert the part after the decimal to a fraction and reduce. EX: 2.125 = 2 125/1000 = 2 1/8
0.2 a repeating decimal into a fraction = 2/9