How to do a math problem

Question

What’ are the steps to solving this problem and finding the value of B?

3 27

— = —

4 B

Answer 1

When you have two fractions equal to each other, you can cross-multiply: If (a / b) = (c / d), then ad = bc.

In this case, cross-multiplying gives you the equation 3B = 27*4. Divide both sides by 3, then simplify to find B = 27*4/3 = 9*4 = 36.