← Aptitude for placements
Lesson 3 of 5
Ratio and proportion
Watch, read the card, then practise. Simplifying ratios · Sharing in a ratio
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Meanwhile, the notes below and the 60-second cards cover the same ideas.
Practise this topicSimplifying ratios
A ratio compares quantities. Simplify it by dividing every part by the same number.
Remember: Divide all parts by their highest common factor.
Sharing in a ratio
To share an amount in a ratio, add the parts, then give each person their share of the total.
Remember: Find one part first; everything else follows.