Writing and Simplifying Ratios - Worksheets, Questions and Revision

9 original exam-style questions - 3 pages of questions with a full mark scheme - free printable PDF.

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KS3 · Ratio, Proportion and Rates of Change

KS3.M-R2 Writing and Simplifying Ratios

AQA KS3.M-R2 · Calculators not allowed · about 60 minutes
Name: _______________________________    Date: ____ / ____ / ______
Answer ALL questions. Show all your working.
1
Write each pair of quantities as a ratio in simplest form.
(a)8 apples to 12 apples.(1)
(b)6 pens to 15 pencils.(1)
(c)10 red balloons to 4 blue balloons.(1)
(d)21 boys to 14 girls.(1)
2
Simplify each ratio fully.
(a)14 : 28(1)
(b)45 : 30(1)
(c)18 : 12(1)
3
A class has ratio of girls to boys 2:3. There are 20 pupils in the class. Work out the number of girls.
(2)
4
Share 84 stickers in the ratio 5:1. Work out how many stickers the smaller share gets.
(2)
5
Write each ratio as a fraction in simplest form.
(a)4:5 as a fraction(1)
(b)3:6 as a fraction in simplest form(1)
(c)7:2 as a fraction(1)
6
Find the missing number to make equivalent ratios.
(a)3:4 = 9:?(2)
(b)5:7 = ?:28(2)
7
A recipe uses oats and sugar in the ratio 3:2. If you use 18 g of oats, how much sugar should you use to keep the same ratio?
(2)
8
Write the ratio 0.5 : 2 in simplest whole-number form.
(1)
9
Which is the larger ratio: 3:7 or 2:5? Explain briefly.
(2)
Mark scheme · KS3.M-R2 Writing and Simplifying Ratios

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9