Evaluate
\frac{n}{4}+\frac{23}{17}
Factor
\frac{17n+92}{68}
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\frac{23\times 4}{68}+\frac{17n}{68}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 17 and 4 is 68. Multiply \frac{23}{17} times \frac{4}{4}. Multiply \frac{n}{4} times \frac{17}{17}.
\frac{23\times 4+17n}{68}
Since \frac{23\times 4}{68} and \frac{17n}{68} have the same denominator, add them by adding their numerators.
\frac{92+17n}{68}
Do the multiplications in 23\times 4+17n.
\frac{92+17n}{68}
Factor out \frac{1}{68}.
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