\text{Inline,\ styles\ auto,\ display\ and\ text~}{\frac{1}{2} - \frac{1}{2} + \frac{1.23456}{7890}}\text{,\ the\ rendering\ should\ be\ script-size,\ normal-size\ and\ script-size\ in\ this\ example.\ Fraction\ lines\ should\ align\ vertically\ with\ the\ math\ axis.}
