Ratio Notation
Use ratio notation to describe the relationship between two or more quantities, simplify ratios to their simplest form, and convert between ratio and fraction representations
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Teaching Table
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“If a smoothie recipe uses orange juice and mango juice in the ratio 3:2, can your child simplify that ratio, express it as a fraction, and work out how much of each is needed for a given total amount?”
Full guide and materials
- Activity. Use ratio notation to describe the relationship between two or more quantities, simplify ratios to their simplest form, and convert between ratio and fraction representations
What to notice. Write a ratio from a word problem and simplify it (e.g. 12:8 = 3:2) • Convert a ratio to equivalent fractions of a whole (e.g. 3:2 means 3/5 and 2/5) • Simplify ratios involving decimals or fractions by finding a common multiplier
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If a smoothie recipe uses orange juice and mango juice in the ratio 3:2, can your child simplify that ratio, express it as a fraction, and work out how much of each is needed for a given total amount?
Use ratio notation to describe the relationship between two or more quantities, simplify ratios to their simplest form, and convert between ratio and fraction representations
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Check understanding
- Write a ratio from a word problem and simplify it (e.g. 12:8 = 3:2)
- Convert a ratio to equivalent fractions of a whole (e.g. 3:2 means 3/5 and 2/5)
- Simplify ratios involving decimals or fractions by finding a common multiplier
“If a smoothie recipe uses orange juice and mango juice in the ratio 3:2, can your child simplify that ratio, express it as a fraction, and work out how much of each is needed for a given total amount?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Ratio & Proportion
- Age range
- Ages 11–12
Standards