Solve for k
k=\frac{1}{3}\approx 0.333333333
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k=\frac{11}{12}-\frac{7}{12}
Subtract \frac{7}{12} from both sides.
k=\frac{11-7}{12}
Since \frac{11}{12} and \frac{7}{12} have the same denominator, subtract them by subtracting their numerators.
k=\frac{4}{12}
Subtract 7 from 11 to get 4.
k=\frac{1}{3}
Reduce the fraction \frac{4}{12} to lowest terms by extracting and canceling out 4.
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