how do you compute 20 percent of 87/8

Answer 1

To calculate the percent of any numbr, multiply the number by the percent and divide by 100.

For example,
87/8*20%
=87/8*20/100
=87/40

Answer 2

20 percent is actually 20/100 or .2
87/8 is actually 10.875

The result is .2 x 10.875

or using fractions
(20 x 87) / (100 x 8) = 1740 / 800 =
2 140/800 = 2 7/40 or 87/40