Solve for n
n=\frac{1}{4}=0.25
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n=\frac{3}{4}-\frac{1}{2}
Subtract \frac{1}{2} from both sides.
n=\frac{3}{4}-\frac{2}{4}
Least common multiple of 4 and 2 is 4. Convert \frac{3}{4} and \frac{1}{2} to fractions with denominator 4.
n=\frac{3-2}{4}
Since \frac{3}{4} and \frac{2}{4} have the same denominator, subtract them by subtracting their numerators.
n=\frac{1}{4}
Subtract 2 from 3 to get 1.
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