Question

What is 0.4 as a fraction in fifths?

Answer 1

The answer is `2/5`

Explanation:

To get from decimals to fractions divide the decimal by the same number of powers of 10 as there are places in the decimal and then simplify the fraction.
There is only one decimal place in 0.4 so divide by 10, which gives you `4/10`; this simplifies by dividing by 2 to get `2/5`

If your decimal is something like 0.45 the you get `45/100` and this can be divided by 5 to get `9/20`