Question

Express the following as ONE fraction:


(( b - c )/ b ) + (b / ( b + c ))

Answer 1

Explanation:

(b - c)/b * (b+c)/b Notice how the second fraction is inverted and multiplied. That's how you handle a 4 tier fraction. Here's a simpler example

`((2)/(3) )/((4)/(5) ) = (2)/(3) * (5)/(4)`

What you get with your problem is

(b^2 - c^2)/b^2