0.45 as a fraction equals 45/100 or 9/20

Steps to convert 0.45 into a fraction.

Write 0.45 as0.451

Multiply both the numerator and denominator by 10 for each digit after the decimal point.

0.451=0.45 x 1001 x 100=45100

As a side note the whole number-integral part is: empty
The decimal part is: .45 = 45/100
Full simple fraction breakdown: 45/100
= 9/20