Represent on the number line.

In a rational number, the number below the bar i.e. the denominator tells the number of equal parts into which the first unit has been divided. The numerator tells ‘how many’ of these parts are considered.

Here, and means 2 and 9 markings of each on the left of zero and starting from 0 respectively and means 5 markings of each on the right of zero and starting from 0.