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Maths
Composition of non-unit fractions: addition and subtraction

Starter quiz

  • The bar model shows seven equal parts of the whole. What fraction can be used to label this?
    The bar model shows seven equal parts of the whole. What fraction can be used to label this?
    • \frac{1}{2}
    • \frac{1}{4}
    • \frac{1}{7}  ✓
    • \frac{1}{8}
  • Each marble in a bag is \frac{1}{8} of the whole bag. How many marbles are there in the bag?
    • 1
    • 8  ✓
    • 9
    • 10
  • A full box of eggs contains 12 eggs. First there were 9 eggs in the box, then 6 were used to make pancakes. Which equation matches this problem?
    A full box of eggs contains 12 eggs. First there were 9 eggs in the box, then 6 were used to make pancakes. Which equation matches this problem?
    • \frac{9}{12} − \frac{6}{12} = \frac{15}{12}
    • \frac{9}{12} − \frac{6}{12} = \frac{3}{12}  ✓
    • \frac{9}{12} − \frac{6}{12} = \frac{3}{0}
    • \frac{9}{12} − \frac{6}{12} = \frac{3}{24}
  • A full box of eggs contains 12 eggs. First there were 6 eggs in the box, then 2 were used to make pancakes. Which fraction represents the number of eggs left?
    A full box of eggs contains 12 eggs. First there were 6 eggs in the box, then 2 were used to make pancakes. Which fraction represents the number of eggs left?
    • \frac{4}{8}
    • \frac{4}{12}  ✓
    • \frac{2}{12}
    • \frac{6}{12}
  • Which expressions have a total less than \frac{4}{10} ?
    • \frac{9}{10} − \frac{5}{10}
    • \frac{2}{10} + \frac{3}{10}
    • \frac{1}{10} + \frac{2}{10}  ✓
    • \frac{7}{10} − \frac{5}{10}  ✓
  • What are the possible values of the missing numerator?
    What are the possible values of the missing numerator?
    • 1  ✓
    • 2  ✓
    • 3  ✓
    • 4
    • 5
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