Creating fractions that don’t look anemic or spindly beside the rest of your text is easy but not entirely obvious to even frequent users of Adobe Illustrator. In this tutorial you will learn how to create well-formed, believable fractions using ANY combination of one, two, three, or more numbers in both the numerator and denominator positions, using modern OpenType fonts or ANY font.
Excerpted from Pariah Burke's comprehensive Pluralsight video course, Illustrator CC Typography: http://abbrv.it/AiTypo