Higher January 2019 Paper 1 Q11
11 Express \(\dfrac{5}{3} - \dfrac{x + 2}{2x}\) as a single fraction in its simplest terms.
(3)
| Scheme | Marks |
|---|---|
| E.g. \(\dfrac{10x}{6x} - \dfrac{3(x + 2)}{6x}\) or \(\dfrac{10x - 3(x + 2)}{6x}\) | M1 |
| \(\dfrac{10x - 3x - 6}{6x}\) or \(\dfrac{7}{6} - \dfrac{1}{x}\) (corrected from the printed mark scheme: \(\dfrac{7}{6x} - \dfrac{1}{x}\)) | M1 |
| \(\dfrac{7x - 6}{6x}\) | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for two correct fractions with common denominator or a single correct fraction
M1: for a correct single fraction with brackets expanded
A1: for \(\dfrac{7x - 6}{6x}\) as the final answer
SC: If no marks awarded then award B1 for an answer of \(\dfrac{7x + 6}{6x}\)