Addition
About this exercise
Adding fractions that already share a denominator.
Example problems
A few of the problems this exercise asks. The printable worksheet holds ten fresh ones.
- Calculate: 2/3 + 1/3
- Calculate: 5/8 + 7/8
- Calculate: 1/6 + 5/6
- Calculate: 7/12 + 11/12
Try it yourself first — open a section below only if you get stuck.
How to solve it
Add the numerators and keep the denominator as it is, then simplify if you can.
Worked example
One fifth plus two fifths is three fifths.
Common mistake
Adding the denominators too. The denominator names the size of the parts and does not change.