The rule depends on what you wish to do with the ratio.
Chat with our AI personalities
Divide the numerator by the denominator. The answer, divided by 1, is the relevant ratio.
Unit Ratio- a ratio that has a denominator of 1
You divide the numerator by the denominator.
When expressed as a ratio of two integers (not intergers!), the simplest form for the integer but not others, has 1 as the denominator.
A ratio with denominator 0 is not defined.