Smart Starters · Ages 8 to 10
Mixed Number Fill-in
Add and subtract mixed numbers with the same denominator and write the answer. A Grade 4–5 fractions worksheet with answer keys.
The learning journey
Every activity is one step. Here is where this one fits.
- PlayLearn the idea in a game
- Practise(you are here)Lock it in on paper
- ReviewCome back and keep it sharp
- MasterTake on a harder challenge
- AchieveEarn a certificate
About Mixed Number Fill-in
Mixed Number Fill-in helps Grade 4 and 5 learners add and subtract mixed numbers — whole numbers combined with a fraction — confidently. Each question pairs two mixed numbers with the same denominator and asks the child to write the answer as a mixed number, reinforcing how the whole-number and fractional parts combine and, when subtracting, how to handle the fraction part correctly. Working fluently with mixed numbers is a key step between basic fractions and the multi-step fraction work of later grades, and it appears across the US Common Core, UK, Canada and Australia curricula. Keeping the denominators matched lets children focus on the core idea without the extra load of finding common denominators, building real confidence first. Every question is generated fresh, and the five levels increase the size of the whole-number parts as fluency grows. Each page prints cleanly on a standard A4 sheet, and every level downloads with its own answer key giving each answer in simplest mixed-number form. There is no advertising, no sign-up and no data leaves the device. Use it for fractions practice or alongside our fraction games for the same age range.
Common questions
- What is a mixed number?
- A whole number combined with a fraction, such as 2 3/4.
- Do the denominators match?
- Yes, both fractions share a denominator so children can focus on the method.
- Is an answer key included?
- Yes, every level gives each answer in simplest mixed-number form.
A hand for grown-ups
- Before you start
- Something you can cut or fold helps enormously — paper, fruit, a sandwich. A half you can see beats a half you are told about.
- While they work
- Keep coming back to "equal parts". A shape split into unequal bits is the classic fractions trap.
- Afterwards
- Fold a piece of paper into halves, then quarters, together. Watching the pieces double is a lightbulb moment for many children.
- Watch out for
- Thinking a bigger bottom number means a bigger fraction (that 1/8 > 1/4). Cutting a real thing into 8 vs 4 pieces settles it fast.
- Away from the screen
- Cut food into equal parts at mealtimes. Fold paper. Talk about "half" and "quarter" of everyday things.
Where to go next
Chosen by the skills this activity practises.