Answer
$\frac{10z-1}{12}$
Work Step by Step
LCD is 12.
$\frac{5z}{6}-\frac{1}{12}=\frac{5z\times2}{6\times2}-\frac{1}{12}=\frac{10z}{12}-\frac{1}{12}=\frac{10z-1}{12}$
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