In a bag there are only blue sweets and green sweets. 34\displaystyle \frac{3}{4}43 of the sweets are green.
What fraction of the sweets are blue?
Hence write down the ratio of blue sweets to green sweets?
222 exam-style questions on WJEC 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.