Evaluate
\frac{5}{12}+\frac{11}{b}
Factor
\frac{5b+132}{12b}
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\frac{11\times 12}{12b}+\frac{5b}{12b}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of b and 12 is 12b. Multiply \frac{11}{b} times \frac{12}{12}. Multiply \frac{5}{12} times \frac{b}{b}.
\frac{11\times 12+5b}{12b}
Since \frac{11\times 12}{12b} and \frac{5b}{12b} have the same denominator, add them by adding their numerators.
\frac{132+5b}{12b}
Do the multiplications in 11\times 12+5b.
Examples
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Limits
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