Solve for P
P = \frac{69}{4} = 17\frac{1}{4} = 17.25
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P=18-\frac{3}{4}
Subtract \frac{3}{4} from both sides.
P=\frac{72}{4}-\frac{3}{4}
Convert 18 to fraction \frac{72}{4}.
P=\frac{72-3}{4}
Since \frac{72}{4} and \frac{3}{4} have the same denominator, subtract them by subtracting their numerators.
P=\frac{69}{4}
Subtract 3 from 72 to get 69.
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