## Numbers

**Numbers** are values that can be used in mathematical operations. You don’t need any special syntax for numbers — just write them straight into JavaScript.

EXAMPLE |
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12345; |

#### Decimals and fractions

JavaScript doesn’t distinguish between whole numbers and decimals, so you can use them together without having to convert from one to the other.

EXAMPLE |
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10 + 3.14159; |

OUTPUT |

13.14159 |

**Fractions** don’t exist in JavaScript, but you can rewrite them as division problems using the division operator /. Note that the resulting number is always converted to decimals — just like with a calculator.

EXAMPLE |
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1 / 3; |

OUTPUT |

0.3333333333333333 |

Improper fractions use the division operator in the same way.

EXAMPLE |
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11 / 10; |

OUTPUT |

1.1 |

To use mixed numbers, you need to add the whole number and fraction.

EXAMPLE |
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1 + (4 / 3); |

OUTPUT |

2.333333333333333 |

#### Negative numbers

You can make a number negative by placing the - operator in front.

EXAMPLE |
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-3; |

OUTPUT |

-3; |

You can also get a negative number by subtracting a number from a smaller number.

EXAMPLE |
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5 - 7; |

OUTPUT |

-2 |