ChalkBee

ACARA AC9M7N08, Ratios

Year 7 · Number

Recognise, represent and solve problems that involve ratios.

Below are free printable maths worksheets that support AC9M7N08. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teach this code

Deliver a whole lesson on AC9M7N08 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Teaching guide

What students learn

Recognise, represent and solve problems that involve ratios.

How to teach it

Introduce ratio as a comparison of quantities, keep the order of the parts consistent, and use a ratio table or bar model to scale up, scale down or share a total.

Worked example
Simplify the ratio 27 : 21 to lowest terms.
Answer: 9 : 7
Why: Divide both by their HCF (3): 27/3 : 21/3 = 9 : 7

Generated and checked in code, so it is correct.

Watch out for

Mixing up ratio with fraction (a 2:3 mix is 2 parts in 5, not two thirds), and reversing the order of the parts.

Number worksheets

All number worksheets →
Make a worksheet for AC9M7N08
More Year 7 Number codes: AC9M7N01 · AC9M7N02 · AC9M7N03 · AC9M7N04 · AC9M7N05 · AC9M7N06 · AC9M7N07 · AC9M7N09
← Browse all Australian Curriculum maths codes

Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.