Write the ratio 15 : 35 in its simplest form.
There are red shapes and blue shapes in a box, 23\displaystyle \frac{2}{3}32 of the shapes are red.
Write the ratio of red shapes to blue shapes.
Practise CIE IGCSE Maths Writing and Simplifying Ratio with exam-style questions for Core and Extended tier. 15 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.