Foundation June 2023 Paper 1 Q21
21 Work out \(\quad 7\dfrac{3}{8} - 2\dfrac{1}{2}\)
Give your answer as a mixed number. (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| \(4\dfrac{7}{8}\) | M2 | for a complete method, eg \(7 - 2 + \dfrac{3}{8} - \dfrac{4}{8}\) condoning error with one numerator or for \(\dfrac{59}{8} - \dfrac{5}{2} = \dfrac{59}{8} - \dfrac{20}{8}\ \left(= \dfrac{39}{8}\right)\) with no more than one error OR for an answer of 4.875 |
| (M1 | for finding two fractions with a correct common denominator, with at least one correct corresponding numerator, eg \(\dfrac{3}{8}, \dfrac{4}{8}\) or for converting both to improper fractions, eg \(\dfrac{59}{8}, \dfrac{5}{2}\) OR for \(7.375 - 2.5\)) | |
| A1 | for \(4\dfrac{7}{8}\) oe eg \(4\dfrac{14}{16}\) |
Additional guidance
At least one improper fraction must be correct
Both decimals must be correct
Any equivalents must be a mixed number