Fraction vs Percentage

When to use each in English, with meaning, register, and examples.

Fraction

Top 2,000 (common)B2noun

Percentage

Top 1,000 (very common)B1noun
Most common: Percentage
 FractionPercentage
Pronunciation🇬🇧 /["/ˈfrækʃn/"]/🇺🇸 /["/ˈfrækʃn/"]/🇬🇧 /["/pəˈsentɪdʒ/"]/🇺🇸 /["/pərˈsentɪdʒ/"]/
MeaningA part of a whole, often shown as a number with a top and a bottom.A part of a whole expressed in hundredths.
ExampleOnly a small fraction of a bank's total deposits will be withdrawn at any one time.The percentage of students passing the exam has increased this year.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB2B1
Part of speechnounnoun
Collocationslarge, significant, sizeable, fraction of, just a fraction, only a fraction, vulgar, decimal, improper, express something asconsiderable, high, huge, calculate, determine, estimate, decline, decrease, drop, point, rate, figure, percentage of, in percentage terms, on a percentage basis, considerable, high, huge, calculate, determine, estimate, decline, decrease, drop, point, rate, figure, percentage of, in percentage terms, on a percentage basis
Antonymswhole, entiretywhole, total
Common mistakesConfused with 'fractional' which means something that is in part., Omitting the word 'of' when describing parts, e.g., saying '1/2 cake' instead of '1/2 of a cake'., Using it incorrectly with non-numerical contexts.Confused with 'percent' — remember 'percentage' is used for a specific quantity., 'Percentage' is often misused as a countable noun; it's usually uncountable., 'Percentage' can be incorrectly pluralized as 'percentages' when not necessary.
Usage notesUsed in math and everyday situations to describe dividing things. It may not be used in casual conversations unless discussing specific math topics.Used in math, finance, and statistics to describe a fraction of a total. Avoid in casual conversation where simpler terms like 'part' might be more understandable.

Frequently asked questions: Fraction vs Percentage

What's the difference between Fraction and Percentage?

Fraction: A part of a whole, often shown as a number with a top and a bottom. Percentage: A part of a whole expressed in hundredths.

Which is more common: Fraction and Percentage?

Percentage is the most common in everyday English.

Are Fraction and Percentage the same CEFR level?

Fraction: B2, Percentage: B1 on the CEFR scale.

Can I use Fraction and Percentage interchangeably?

Not always. Fraction and Percentage are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.