5/6 of 30

"5/6 of 30" is the same thing as 5/6 times 30.

To multiply fractions, the numerator and denominator of each fraction is multiplied, and then simplified.

So:

$\frac{5}{6} \times 30$ =

$\frac{5}{6} \times \frac{30}{1}$ =

$\frac{5\times 30}{6 \times 1}$ =

$\frac{150}{6}$ = 25