78:99999

To simplify the ratio 78:99999, we can divide both numbers by their greatest common divisor (GCD).

First, let's find the GCD of 78 and 99999.

The GCD of 78 and 99999 is 3.

Now, we can divide both numbers by 3:

78 ÷ 3 = 26
99999 ÷ 3 = 33333

So, the simplified ratio of 78:99999 is 26:33333.