Question

How do you convert 2/5 into decimals and percents?

Answer 1

`2/5 = 4/10 = 40/100 = 0.40 = 40%`

Explanation:

If a fraction is written with a denominator which is a power of 10 it can be written as a decimal. A fraction with a denominator of 100 is immediately the same as a percentage.

The first 2 decimal places represent hundredths, which can be written as a percent.

`2/5 = 4/10 = 40/100 = 0.40 = 40%`

This can also be done by `xx 100%`

`2/5 xx 100%" "larr` use the '100' in the calculation

=`40%" "larr` write the '%' sign in the answer.