.45 as a Fraction
To convert .45 to a fraction you need to multiply 0.45/1 by 100/100 and you’ll get 45/100. This result can be further reduced to 9/20.

What Is .45 as a Fraction?
.45 as a fraction in simplest form is 9/20. You can verify this answer by using a calculator to divide 9 by 20 and the result should be 0.45.
How to Convert .45 to a Fraction
Here are the steps to convert a decimal to a fraction, more specifically how to get .45 as a simplified fraction:
-
Rewrite 0.45 as a fraction dividing it by 1.
0.45 1
-
Multiply the numerator and denominator by 100. Because .45 has two digits after the decimal point, you need to multiply by 102=100 to get rid of the decimal places.
0.45 1×100 100=45 100
-
Divide 45 and 100 by their Greatest Common Factor (GCF), which in this case is 5.
45 ÷ 5 100 ÷ 5
-
So .45 as a fraction in simplest form is:
9 20