Work through the levels in order. Type your answer and press Check — open the worked solution if you get stuck. Answers like -6, 3/4 or 0.25 are typed exactly as shown. A ⭐ Bonus Challenge at the end is extra credit — skip it if the rest was hard work.
Level 1 · Warm-up
1 Work out 2/7 + 3/7.
Show worked solution
2 + 3 = 5 sevenths, so the answer is 5/7.
2 Work out 7/9 − 2/9.
Show worked solution
7 − 2 = 5 ninths, so the answer is 5/9.
3 Work out 3/10 + 4/10.
Show worked solution
3 + 4 = 7 tenths, so the answer is 7/10.
Level 2 · Core
4 Work out 1/6 + 3/6 and give your answer in its simplest form.
Show worked solution
1/6 + 3/6 = 4/6, and dividing top and bottom by 2 gives 2/3.
5 Work out 3/8 + 1/4.
Show worked solution
1/4 = 2/8, so 3/8 + 2/8 = 5/8.
6 Work out 7/10 − 1/5 and give your answer in its simplest form.
Show worked solution
1/5 = 2/10, so 7/10 − 2/10 = 5/10, which simplifies to 1/2.
Level 3 · Challenge
7 Work out 2/3 + 1/4.
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2/3 = 8/12 and 1/4 = 3/12, so the total is 11/12.
8 Work out 3/4 − 2/5.
Show worked solution
3/4 = 15/20 and 2/5 = 8/20, so 15/20 − 8/20 = 7/20.
9 Work out 2 and 1/4 plus 1 and 1/2. (as a mixed number)
Show worked solution
Wholes: 2 + 1 = 3. Parts: 1/4 + 2/4 = 3/4. So the answer is 3 and 3/4.