PART A
ACTIVE
Whole numbers only. Use 0 or more.
PART B
TAP
Whole numbers only. Use 0 or more.
SIMPLIFY RATIOS • FIND HCF • OPTIONAL TARGET SCALING • ENTER • NO SCROLL
SCALE MODE
OFF
Optional scaling after simplification.
TARGET
—
Used only when scale mode is switched on.
PREVIEW
LIVE
Preview updates while you type.
RULE
HCF
Simplest ratios stay as whole-number parts.
SIMPLIFY RATIOS • FIND HCF • OPTIONAL TARGET SCALING • ENTER
PART A
ACTIVE
Whole numbers only. Use 0 or more.
PART B
TAP
Whole numbers only. Use 0 or more.
SCALE MODE
OFF
Optional scaling after simplification.
TARGET
—
Used only when scale mode is switched on.
PREVIEW
LIVE
Preview updates while you type.
RULE
HCF
Simplest ratios stay as whole-number parts.
CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
EXAMPLE
12:18 = 2:3
The HCF of 12 and 18 is 6, so divide both parts by 6.
HISTORY
—
—
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CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
HOW TO USE
Type PART A and PART B
Leave SCALE MODE off for simplest ratio only
Press ENTER or SIMPLIFY
Read the reduced or scaled ratio
CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
METHOD RULES
Find the HCF of both parts
Divide A and B by the HCF
That gives the simplest whole-number ratio
Scale afterwards only if needed
CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
SEO SEARCHES
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CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
RELATED SEARCHES + INTENT
how to simplify a ratio
how to find the hcf in a ratio
ratio homework checker
ratio scaling helper
GCSE ratio help
CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
USE CASES
school maths and homework
recipe scaling and mixing
map and plan comparisons
classroom demonstrations
exam revision practice
CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
AUDIENCE
students
teachers
parents
tutors
anyone simplifying ratios
users scaling to target values
CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.
SUPPLEMENTARY ACTIONS
Extra spare controls are kept here too.
CURRENT RESULT
Ratio simplifier for whole-number ratios, HCF reduction and target scaling
12:18 = 2:3
Find the highest common factor, divide both parts, then scale only if you need a target value.