In a bag there are blue sweets and red sweets. The ratio of blue sweets to red sweets is 5:8
Show that 513\displaystyle \frac{5}{13}135 of the sweets are blue.
222 exam-style questions on Eduqas GCSE Maths Writing a Ratio as a Fraction or Linear Function. Each one has a worked solution and a mark scheme showing where the marks go.