Adding fractions that have the same denominator by adding the numerators.
Where your child meets this in real life: Adding portions of the same item (⅓ + ⅓ of a cake)
SEAGReady breaks add fractions (same denominator) into 3 steps, taught in order so each skill builds on the last.
excluded lesson — excluded from official-format mocks
Add two fractions with the same denominator where the result is less than 1
excluded lesson — excluded from official-format mocks
Add fractions with the same denominator where the sum is greater than or equal to 1, and convert the improper fraction to a mixed number
excluded lesson — excluded from official-format mocks
Add fractions with the same denominator and simplify the result to lowest terms
Three free sample questions from our add fractions (same denominator) course. Every question comes with a full explanation, and hints that guide without giving the answer away.
This is the exact interactive worked example your child sees in SEAGReady. Step through it and watch the method build up.
Alice is making a smoothie. She uses 2/5 of a banana in the morning and 1/5 of the same banana later.
What fraction of the banana did she use altogether?
2/5 + 1/5
Both fractions are fifths (denominator is 5)
Step 1 of 4
Alice is making a smoothie. She uses 2/5 of a banana in the morning and 1/5 of the same banana later.
What fraction of the banana did she use altogether?
Alice used 3/5 of the banana altogether.
The key insight: When denominators are the same, just add the numerators - the pieces are already the same size!
Common mix-up: 2/5 + 1/5 = 3/10. Adding the denominators too! Only add the numerators - the denominator stays the same.
These are the misconceptions we see most often in add fractions (same denominator), including the ones our practice questions are specifically designed to catch.
Struggling with add fractions (same denominator)? The real gap is often in one of these earlier topics.
SEAGReady finds the exact step where your child gets stuck, teaches it with worked examples like the one above, and brings it back for review so it sticks.
Free to start · no card needed