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When I use beamer, things like \sin, \cos, etc. appear in the sans-serif font. But if I say


and then use \lcm inside a math formula, it appears in the cmr font. How can I get it to appear in the sans-serif font like other math functions?

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It doesn't happen to me; you should add the font loading part of your preamble. – egreg Jun 30 '11 at 14:37

1 Answer 1



\[ \lcm = l\times c\times m \]


enter image description here

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