Fraction |
Decimal |
Per Cent |

1/2 | .5 | 50% |

1/3 | .3333 | 33.33% |

2/3 | .6667 | 66.67% |

1/4 | .25 | 25% |

3/4 | .75 | 75% |

1/5 | .2 | 20% |

2/5 | .4 | 40% |

3/5 | .6 | 60% |

4/5 | .8 | 80% |

1/6 | .1667 | 16.67% |

5/6 | .8333 | 83.33% |

1/8 | .125 | 12.5% |

3/8 | .375 | 37.5% |

5/8 | .625 | 62.5% |

7/8 | .875 | 87.5% |

1/9 | .1111 | 11.11% |

2/9 | .2222 | 22.22% |

4/9 | .4444 | 44.44% |

5/9 | .5556 | 55.56% |

7/9 | .7778 | 77.78% |

8/9 | .8889 | 88.89% |

1/10 | .1 | 10% |

3/10 | .3 | 30% |

7/10 | .7 | 70% |

9/10 | .9 | 90% |

2/2, 3/3, 4/4, … | 1 | 100% |

**Tips**

- To change a fraction to a decimal, divide the numerator by the denominator.
- To change a fraction to a per cent, multiply the numerator by 100, then divide the numerator by the denominator, then attach a per cent sign.
- To change a decimal to a fraction, eliminate the decimal and divide by the number made up of 1 plus the same number of zeros as there decimal points. This works for all decimals that are not repeated or continuous. Thus, .5 = 5/10 = 1/2 and .75 = 75/100 = 3/4 and .125 = 125/1000 = 1/8.

For repeated decimals, it would be .3333 = 333 1/3 ÷ 1000 = 1000 ÷ 3000 = 1/3 and .5556 = 555 5/6 ÷ 1000 = 5000 ÷ 6000 = 5/6. - To change a decimal to a per cent, move the decimal point two spaces to the right, then attach a per cent sign.
- To change a per cent to a fraction, move the decimal 2 places to the left and follow the same procedure as with changing a decimal to a fraction. Thus, 50% = 50/100 = 1/2 and 75% = 75/100 = 3/4. Also 33.33% = 33 1/3% = 100/300 = 1/3 and 55.56% = 55 5/9% = 500/900 = 5/9.
- To change a per cent to a decimal, move the deimal two places to the left, then remove the per cent sign.