Evaluate
\frac{v_{2}}{2}-v_{6}
Factor
\frac{v_{2}-2v_{6}}{2}
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\frac{v_{2}}{2}-\frac{2v_{6}}{2}
To add or subtract expressions, expand them to make their denominators the same. Multiply v_{6} times \frac{2}{2}.
\frac{v_{2}-2v_{6}}{2}
Since \frac{v_{2}}{2} and \frac{2v_{6}}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{v_{2}-2v_{6}}{2}
Factor out \frac{1}{2}.
Examples
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