Answer:
Both fractions in the expression
are examples of proper fractions.
Step-by-step explanation:
Given : Both fractions in the expression 
To find : That both the fractions is the example of?
Solution :
In the fraction
numerator is smaller than the denominator.
Therefore, The fraction is proper fraction.
When we add the fractions,
The denominator of both fractions is equal,

In this fraction also the numerator is smaller than the denominator
Therefore, The fraction is proper fraction.
Hence, Both fractions in the expression
are examples of proper fractions.