Solve for z
z = \frac{21}{2} = 10\frac{1}{2} = 10.5
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\frac{7}{8}\times 12=z
Multiply both sides by 12.
\frac{7\times 12}{8}=z
Express \frac{7}{8}\times 12 as a single fraction.
\frac{84}{8}=z
Multiply 7 and 12 to get 84.
\frac{21}{2}=z
Reduce the fraction \frac{84}{8} to lowest terms by extracting and canceling out 4.
z=\frac{21}{2}
Swap sides so that all variable terms are on the left hand side.
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