where is the fraction button?

\(Give\ [LaTeX] \)

\( Delete\) x = {-b \pm \sqrt{b^2-4ac} \over 2a}

\(operate \ [\ \underline{Math}\ ]\)

\(operate \ [\ \Box/\Box\ ]\)

\(Give \ numerator \ and \ denominator \ in\) \\(frac\) {1}{3}

\(Give \ OK\)

\(\frac{1}{3}\)

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