Question

How do you solve `\frac { 8} { 5} = \frac { 6} { b }`?

Answer 1

Cross multiply, then divide the product on the left hand side by 8 to get the value of b.

Explanation:

`8/5 = 6/b`

`=> 8*b=6*5`

Through cross multiplication we get:
`8b=30`

`=>b = 30/8`
We could simplify this and then the final answer would then be
`b= 15/4 or 3.75`