Given the proportion a/b=8/15, what ratio completes the equivalent proportion a/8= ?

To find the missing ratio in the equivalent proportion, we need to multiply both parts of the given proportion by the same factor that will turn the denominator of the given proportion into the numerator of the missing ratio.

Since the ratio is a/b = 8/15, we can multiply both parts of the ratio by 8 to complete the equivalent proportion as follows:

a/b * 8 = (8/15) * 8
a/8 = 64/15

Therefore, the missing ratio to complete the equivalent proportion is a/8 = 64/15.