Draw number line and locate the points on them:
18, 28, 38, 78
We have to represent the fractions 18, 28, 38, 78 on the number line.
The denominator of the given fractions is 8.
Also, all these fractions are less than 1.
So, we divide the gap between 0 and 1(on the number line) into 8 equal parts.
The fractions 18, 28, 38, 78 are represented on the number line as shown below.