8 1/2 / 1 2/5

To divide fractions, we need to first convert the fractions into improper fractions.

For 8 1/2, we can calculate it by multiplying the whole number (8) by the denominator (2), and then adding the numerator (1). So, 8 1/2 equals (8 * 2 + 1)/2 = 17/2.

For 1 2/5, we can calculate it by multiplying the whole number (1) by the denominator (5), and then adding the numerator (2). So, 1 2/5 equals (1 * 5 + 2)/5 = 7/5.

Now, we can divide 17/2 by 7/5:

(17/2) / (7/5)

To divide fractions, we need to multiply the first fraction by the reciprocal of the second fraction:

(17/2) * (5/7)

Next, we can simplify by canceling common factors between the numerators and denominators:

(17 * 5) / (2 * 7) = 85/14

Therefore, 8 1/2 divided by 1 2/5 equals 85/14.