$\frac{9 Y-5}{4 Y}+\frac{7 Y+1}{4 Y}$

Sep 27, 2013the title says it all, both \dfrac {a} {b} and \frac {a} {b} make fractions, so what is the difference between the two? Oct 8, 2010if you want the numerator on top of the denumerator, and have it appear smaller, the way it typically does in inline math mode as opposed to displayed math style, then use \tfrac{x}{y} (requires. \frac is a latex-only command that builds on the \over macro to provide something that's much less likely.

8 \int_0^ {\infty} du \frac { (u^2-1) (u^4-6 u^2+1)} {u^8+4 u^6+70 u^4+4 u^2+1} \log {u}$ from which i. ${ \frac{\fam0 a}{b} }$ for my purposes, should such an issue arise, it is easily resolved by using \frac and so, while this example illustrates a shortcoming of \over and the need for something more robust, it. Should one use \frac or /? If you think that / should be used, at what point is the fraction "large enough" that one should switch to using \frac? Fractions in subscript and superscript (e.g. It is nearly always best to use the slashed form for fractions in the text: $\int\limits_0^\infty \frac {\sin x} x \,\mathrm dx = \frac \pi. With amsmath or mathtools you can write dfrac instead of frac, but since dfrac is used for inline fractions, it won't change anything for you in math environments. Dec 8, 2016often it looks better to use \tfrac if you are just wanting a numeric fraction as part of an expression, when the display fraction can look a bit spacey. Conversely if the fraction is already a.