Unit 8.1

# Fractions and decimals

## Introduction

Fractions and decimals represent a numerical quantity.

## Form

• Regular fractions

Spelling: a cardinal number + an ordinal number in the plural (except for the number 1)

 2/3 two thirds
• Irregular fractions

Spelling: They have their own specific names

 1/4 a quarter 1/2 a half 3/4 three quarters
• Two ways to express their writing form:
• Fraction
 3/5 three fifths
• Decimals
 0.5 point five/ nought point five/ zero point five 0.25 point two five/ nought point two five/zero point two five 0.333 point three three three/ nought point three three three/ zero point three three three

## Example

• The fat content of this product is two thirds.
• They held the post for two and a half years.
• We’re only talking a quarter million.

## Use

We use fractions and decimals in science and everyday life to express quantities.

## Exercises

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