Ratio and Proportion
Ratio and proportion is brand new in Year 6, and it is one of the ideas children lean on most in secondary school. Here they learn to write and simplify a ratio, and to use a fraction to describe how big one quantity is compared with another.
Practise Ratio and Proportion
Have a guess, even if you're not sure. Get one wrong and we'll show you why, so every miss is a chance to learn.
Timed practice
The same practice, just with a gentle clock. Pick a length and see how many you can answer.
They share an amount unequally in a given ratio, scale a recipe up or down, and use the unitary method, where you find the value of one part first and then multiply. They also compare quantities using percentages, and work out the missing measurements of similar shapes that have been enlarged by a whole-number scale factor.
Every question is multiple choice with instant feedback, and a gentle hint appears whenever an answer needs a nudge. It is free, with no account to set up, and runs in any web browser on a phone, tablet or computer.
See an example
A real question from this topic. Have a go, then reveal the answer.
What is in this topic
- Writing and simplifying ratios
- Using a fraction to compare the size of two quantities
- Sharing an amount unequally in a given ratio
- The unitary method, and scaling recipes up and down
- Comparing quantities using percentages
- Similar shapes by a whole-number scale factor