You can only compare two fractions if the whole is the same size.
That is why both bars are always the same length.
Two cases help you:
1. If the lower number is the same, the fraction with the bigger upper number wins.
2. If the upper number is the same, the fraction with the smaller lower number wins. The more parts, the smaller one part is.
Some fractions are equally big although different numbers are in them. One half and three sixths color exactly the same amount.
Example
For parents
What does this exercise practice?
Comparing two fractions on bars of equal length and describing them with smaller, bigger or equal.
Common pitfalls
A bigger lower number does not mean a bigger fraction. One eighth is smaller than one quarter.
How to practice at home
Divide a bar of chocolate in different ways and compare who gets more -- one third or two sixths.
Related: Fractions, Comparing Measurements, Ordering Numbers