Verify that the ratio 81:27 81 : 27\,81:27 in its simplest form is 3:13 : 13:1
38\displaystyle \frac{3}{8}83 of chocolates in a box are white chocolate, the rest are milk chocolate.
Verify that the ratio of white chocolates to milk chocolates is 3:53 : 53:5.
249 exam-style questions on OCR GCSE Maths Writing and Simplifying Ratio. Each one has a worked solution and a mark scheme showing where the marks go.