Think about the fractions $\frac{1}{2}$12 and $\frac{1}{3}$13.
Plot the number $\frac{1}{2}$12 on the number line.
Plot the number $\frac{1}{3}$13 on the number line.
The two numbers can be shown on the same number line like this:
Which number is bigger?
$\frac{1}{2}$12
$\frac{1}{3}$13
Think about the fractions $\frac{1}{3}$13 and $\frac{1}{4}$14.
Think about the fractions $\frac{1}{4}$14 and $\frac{1}{5}$15.
Think about the fractions $\frac{1}{2}$12 and $\frac{1}{4}$14.