Question

What is 2.4 as a fraction?

Answer 1

`2.4=2 2/5` (as a mixed fraction)
or `=12/5` (as an improper fraction)

Explanation:

`color(red)(2).color(blue)(4)` means `color(red)(2)xx10^0 + color(blue)(4)xx10^-1`

`= color(red)(2)xx1 + color(blue)(4)/10`

`=2 4/10 = 2 2/5`

The decimal point between the (in this case) `color(red)(2)` and the `color(blue)(4)` marks the beginning of the negative exponents for the `10`'s