4400 Higher November 2009 Paper 3 Q1
1 Show that \(\dfrac{2}{3} + \dfrac{1}{5} = \dfrac{13}{15}\)
(2)
| Scheme | Marks |
|---|---|
| “x”/15 + “y”/15 or ((2 × 5) + (1 × 3))/(3 × 5) | B1 |
| B1 | |
| (2) | |
| (2 marks) |
Notes
B1: denominators common multiple of 15 or 10/15 or 3/15 (accept (2 × 5)/15 or (3 × 1)/15)
B1: correct answer equivalent to 13/15