[Tex/LaTex] How to change the font size of a fraction in an index

equationsmath-modetext manipulation

I have, as part of an equation, the object

a^{5} \left(\frac{b}{c}\right)^{\frac{2}{3}}

The problem is that the 2 and 3 are very small (compared to the 5) and I would like all sub/superscripts to be the same size just as all body text is the same size. Is there a way of defining the font size inside the equation environment?

Best Answer

Try dfrac instead of frac:

a^{5} \left(\dfrac{b}{c}\right)^{\dfrac{2}{3}}

You will need the amsmath package