$$\frac{5}{6}*30$$
Let's first look at the general case:
$$\frac{a}{b}*k$$
To calculate this, simply multiply the number (in this case k), with the numerator (top, in this case a), and divide the product with the denominator (bottom, in this case b):
$$\frac{a}{b}*k = \frac{a*k}{b}$$
So in our case, we get:
$$\frac{5}{6}*30 = \frac{5*30}{6}=\frac{150}{6}= 25$$
.$$\frac{5}{6}*30$$
Let's first look at the general case:
$$\frac{a}{b}*k$$
To calculate this, simply multiply the number (in this case k), with the numerator (top, in this case a), and divide the product with the denominator (bottom, in this case b):
$$\frac{a}{b}*k = \frac{a*k}{b}$$
So in our case, we get:
$$\frac{5}{6}*30 = \frac{5*30}{6}=\frac{150}{6}= 25$$