In this post I’ll be proving to you that if:

a/b=c/d

Then:

a/b=(a+c)/(b+d)

To prove this, the first thing you need to know is that:

The rest is just mathematical / algebraic trickery… Let me show you…

**Proof 1:**

**Proof 2:**

**Proof 1 Video:**

**Proof 2 Video:**