# Fractions

These macros make it easier to insert fractions that have 2, 3, 4, 5, 6, or 12 as the denominator. A "short" version of each command is included. The short versions separate the numerator and denominator with a slash instead of a horizontal line. For general short fractions, use `\fracshort`.

**Definition**

### Examples

Code | Output |
---|---|

\fracshort{a}{b} |
$$a/b $$ |

\fracshort{1}{\left(1 + e^{x^{-2}}\right)} |
$$\left. 1 \middle/ \left(1 + e^{x^{-2}}\right) \right. $$ |

\half |
$$\frac{1}{2} $$ |

\half[x] |
$$\frac{x}{2} $$ |

\third \fourth \fifth \sixth \twelfth |
$$\frac{1}{3}\frac{1}{4}\frac{1}{5}\frac{1}{6}\frac{1}{12} $$ |

\third[a] \fourth[b] \fifth[c] \sixth[d] \twelfth[e] |
$$\frac{a}{3}\frac{b}{4}\frac{c}{5}\frac{d}{6}\frac{e}{12} $$ |