Question

What fraction is in between 2/3 and 3/3?

Answer 1

3/4, 6/8, 4/5, and 6/7 are all between 2/3 and 3/3. They are all less then 1 but also greater than 2/3

Answer 2

There is virtually an unlimited number of fractions between $\frac{2}{3}$ and $\frac{3}{3}$

$\frac{2}{3} < \frac{3}{3}$

There is an unlimited amount of fractions because $\frac{2}{3}$ and $\frac{3}{3}$ can be broken up into smaller and smaller pieces or even bigger like a pie

For example: $\frac{2}{3}$ is equivalent to $\frac{200}{300}$ and $\frac{3}{3}$ is equivalent  to $\frac{300}{300}$ or even $\frac{3000000}{3000000}$