Q1
What does a ratio do?
ACompares two quantities
BAdds two quantities
CSubtracts two quantities
DNothing useful
ICSEClass 6 (ICSE)MathematicsCh 11 · Topic 2
Practice and Revision - Ratio
Let us practise and revise what we learned about ratio. A ratio compares two quantities, showing how much of one thing there is compared to
Core concept
A ratio like 3:4 means for every 3 units of one thing, there are 4 units of another, comparing their relative sizes.
How it works
Ratios can be simplified, similar to fractions, by dividing both numbers by their common factor.
Why it matters
For example, the ratio 6:8 simplifies to 3:4 by dividing both numbers by 2.
Key detail
Ratios are used in real life for recipes (like mixing ingredients), maps (scale ratios), and comparing quantities.
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Quick notes
• A ratio compares two quantities.
• 3:4 means 3 units to 4 units.
• Ratios can be simplified like fractions.
• We divide by the common factor to simplify.
• 6:8 simplifies to 3:4.
• Ratios are used in recipes.
• Maps use scale ratios.
• Ratios help compare quantities.