Higher November 2020 Paper 6 Q18
18 Write \(0.4\dot{1}\dot{6}\) as a fraction in its simplest form.
You must show full working in support of your answer. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(\frac{412}{990} = \frac{206}{495}\) with correct working or \(\frac{41.2}{99} = \frac{206}{495}\) with correct working | 3 | M2 for \(1000x\) [–] \(10x\) = 416.16[1...] [–] 4.16[1...] leading to \(990x = 412\) or for \(100x\) [–] \(x\) = 41.616[1...] [–] 0. 416[1...] leading to \(99x = 41.2\) or M1 for \(10x\) = 4.16[1...] or \(100x\) = 41.616[1...] or \(1000x\) = 416.16[1...] seen | “Correct working” requires M2 Subtractions can be implied |