Solve for b
b = \frac{25}{8} = 3\frac{1}{8} = 3.125
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b=3+\frac{1}{8}
Add \frac{1}{8} to both sides.
b=\frac{24}{8}+\frac{1}{8}
Convert 3 to fraction \frac{24}{8}.
b=\frac{24+1}{8}
Since \frac{24}{8} and \frac{1}{8} have the same denominator, add them by adding their numerators.
b=\frac{25}{8}
Add 24 and 1 to get 25.
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