Question

Which one of the following can be classified only as a rational number 12 0.75 09

Answer 1

Remember that the rational numbers are those that can be written as a quotient of integers, this means the following:

`\begin{gathered} (a)/(b) \\ a,b\text{ integers} \end{gathered}`

in this case, 0 and 9 are integers, while 0.75 can be written like this:

`0.75=(75)/(100)`

cearly, 75 and 100 are integers, therefore, only 0.75 is a rational number