What is 0.4 as a Fraction?
A fraction is when a quantity is represented as a part of the whole.
Answer: 0.4 can be written in a fraction as 4/10 or 2/5.
First, we need to remove the decimal.
For that, we multiply and divide by 10 as there is only one digit after the decimal.
We get, 0.4/1 x 10/10 = 4/10
4/10 can further be reduced to 2/5
Hence, we can say that 0.4 as a fraction is 4/10 or 2/5.