Add and subtract unlike fractions
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Log in to continueRename fractions to equal-sized parts before calculating.
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Calculate 1/2 + 1/4. Give a fraction in simplest form.
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Answer: 3/4
- Rename both fractions with the same denominator, then combine the numerators.
- 1/2 + 1/4 = 3/4.
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Curriculum reference
Victorian Curriculum F–10 Version 2.0
Pi Leo practice scope
Rename fractions to equal-sized parts before calculating.
Read the official VCAA curriculum description (VC2M6N05)
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Activities to practise beyond the quiz
- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- VC2M6N05-C01Rename unlike fractions with a common denominator before adding or subtracting their numerators.
- VC2M6N05-C02Subtraction with unlike denominators first requires equivalent fractions. Simplify the result and check that its size is sensible.
- VC2M6N05-C03Mixed numbers and improper fractions name the same amount. Choose the representation that makes a practical answer clear.
- VC2M6N05-C04Demonstrating and explaining an equivalent-fraction strategy.
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Descriptor-derived subskills
- D01Build shared parts for addition and subtractionRename unlike fractions with a common denominator before adding or subtracting their numerators.
- D02Subtract equal-sized partsSubtraction with unlike denominators first requires equivalent fractions. Simplify the result and check that its size is sensible.
- D03Connect results to whole amountsMixed numbers and improper fractions name the same amount. Choose the representation that makes a practical answer clear.