Class 6 Math: Ratio and Proportion Quick Revision Chapter Summary

Need to review the entire chapter before a test? This quick revision guide summarizes all the core concepts, topics, and equations taught in Class 6 Ratio and Proportion to help you refresh your memory instantly.

Core Topics At a Glance

### 📌 Ratio concept A ratio is a division comparison of two quantities of the exact same unit, written as a:b.

### 📌 Simplifying ratios Simplifying ratios is dividing both terms by their Highest Common Factor (HCF) to find equivalent, simpler forms.

### 📌 Proportion definition A proportion is a statement that two ratios are equal, written as a:b :: c:d.

### 📌 Unitary method Solving proportion problems by finding the value of one unit first, and then multiplying to find the required quantity.

Key Formulas Mind Map

• Ratio Notation: `a:b = \frac{a}{b}` - Compares quantity a relative to b....
• Proportion Condition: `a:b = c:d \Leftrightarrow ad = bc` - Cross product rule for proportions....

Revision Checklist

1. Review the subtopic guides and outline notes.
2. Practice writing the key formulas from memory.
3. Solve at least 3 worked examples and check your steps.
4. Take a timed practice quiz to verify your speed.