The fraction** ½** can be written in several equivalent ways.

This shows that ½ = 1 ÷ 2 = **0.5**

0.5 is the same as **0.50 **and **0.500** and **0.5000 **etc.

½ of 100 = 100 ÷ 2 = 50, so ½ can also be written as **50%.**

So** ½ = 0.5 = 50%**

You should know the following simple equivalences.

Fraction | Decimal | Percentage |
---|---|---|

1/2 | 0.5 | 50% |

1/4 | 0.25 | 25% |

3/4 | 0.75 | 75% |

1/5 | 0.2 | 20% |

1/10 | 0.1 | 10% |

1/100 | 0.01 | 1% |

You should also be able to work out multiples of fifths, tenths and hundredths, for example...

**3/5 = **3 × 0.2** = 0.6 = 60%**

**7/10 = **7 × 0.1** = 0.7 = 70%**

**8/100 =** 8 × 0.01** = 0.08 = 8%**