Question

Given that

5x : 8 = 7 : 2

calculate the value of x
give your answer in its simplest form

Answer 1

Answer: x=5.6 or 5 3/5

Explanation:

Cross multiplication is when you have two fractions (ratios) that are equivalent and you can multiply the numerator of the first one by the denominator of the second one, and the denominator of the first one by the numerator of the first one. The answers to these two are equivalent.

So, 5x/8 = 7/2

10x=56

x=5.6

x= 5 3/5