Add and subtract fractions with the same denominator, and mixed numbers.
Add and Subtract Fractions teaches fourth graders to add and subtract fractions with like denominators, multiply a fraction by a whole number and solve fraction story problems. Clear pictures and voice explain why the denominator stays the same.
Math course · Grade 4
Add and Subtract Fractions · Learning goals
Add and subtract fractions with like denominators, multiply a fraction by a whole number, and solve fraction story problems.
Why it matters
Adding fractions turns fraction understanding into a skill kids can use, for example in recipes and measurements.
Models show why 1/4 + 2/4 is 3/4 and not 3/8, a mistake many kids make.
Like denominators come first. Next year kids add fractions with unlike denominators.
Inside Add and Subtract Fractions
A short read-aloud lesson first, then hands-on games and a quiz to lock it in.
Step 1 · Lesson
A short read-aloud lesson in 4 steps, with pictures and worked examples.
Step 2 · Game
Add the tops. Keep the bottom. (6 problems)
Step 3 · Game
Subtract the tops. Keep the bottom. (6 problems)
Step 4 · Game
Multiply the top by the whole number. (6 problems)
Step 5 · Game
Answer with a fraction. (5 problems)
Lesson preview
This is the real lesson text your child hears, read aloud by a friendly voice.
When the bottoms are the same, add the tops: 2/8 + 3/8 = 5/8. The bottom stays the same!
Subtract the same way: 7/10 − 4/10 = 3/10.
3 × 1/4 means 1/4 + 1/4 + 1/4 = 3/4.
When the top equals the bottom, it's one whole: 4/4 = 1.
For parents
Learning sticks best when kids use it in real life. Here are simple ideas from this course.
Bake together and add fractions of cups: 1/4 cup plus 2/4 cup. Ask how much flour you used in total.
Practice
Real questions from Add and Subtract Fractions. Try them with your child, then tap to see the answer.
Question 1
7/10
Question 2
4/8
Question 3
4/6
The full course has 23 questions with instant feedback, stars and rewards. Create a free account to play them all.
Add and Subtract Fractions · Questions from parents
Add and Subtract Fractions is a grade 4 math course for kids ages 9–10. That is Year 5 maths in the UK and Year 4 in Australia. It also works well for review in the next grade, or as a challenge for a confident younger learner.
Add and subtract fractions with like denominators, multiply a fraction by a whole number, and solve fraction story problems. Along the way they practice: Add Fractions; Subtract Fractions; Whole Times Fraction; Fraction Stories.
About 10 minutes in total, split into 4 short levels. Most kids finish it over two or three sessions. Progress is saved, so they can stop any time and pick up where they left off.
Add and Subtract Fractions is part of SkillBloom Premium, which unlocks every course in every subject. Each subject also has free courses, so your child can try SkillBloom before you decide.
No. Every lesson has a friendly read-aloud voice, questions are read aloud too, and the pictures help kids follow along. Confident readers can turn the voice off.
Yes. SkillBloom is built for homeschooling families. Kids work through lessons, games and quizzes on their own, and the parent dashboard shows what they finished and which skills need more practice. It works on phones, tablets and laptops.
Keep learning
