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 Edexcel IGCSE Maths Writing and Simplifying Ratio with exam-style questions for IGCSE Maths. 15 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 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.