What is 33 and 67 in it's simplest ratio

To find the simplest ratio, you must find the largest number they can both be divided by (greatest common factor, or GCF). However, 67 is a prime number, meaning its only factors are 67 and 1. That means there are no GCFs here other than 1, so, the simplest ratio here would be 33 over 67, or 33/67 in computer text. easy peasy!