0.8 as a Fraction

Writing 0.8 as a fraction requires us to multiply 0.8/1 by 10/10 which will result in 8/10. Simplifying further we get the final answer: 4/5.

What Is 0.8 as a Fraction?

0.8 as a fraction in lowest terms is 4/5. Quick tip: to verify the answer is correct, use a calculator to divide 4 by 5 and you should get 0.8.

How to Work Out 0.8 as a Fraction

The simple steps below will help you convert a decimal into a fraction. In this example we’ll demonstrate how to write .8 as a simplified fraction:

1. Turn 0.8 into a fraction dividing it by 1.
   0.8 1
2. To get rid of the decimal point, multiply the numerator and denominator by 10. Why 10? 0.8 has one digit after the decimal point, so you need to multiply by 10¹=10.
   0.8 1

   ×

   10 10

   =

   8 10
3. Divide 8 and 10 by their Greatest Common Divisor (GCD), which in this case is 2.
   8 ÷ 2 10 ÷ 2
4. In conclusion, 0.8 as a fraction in simplest form is:
   4 5