# How to Calculate 1/1 Minus 19/1

Are you looking to work out and calculate how to subtract 1/1 from 19/1? In this really simple guide, we'll teach you exactly what 1/1 - 19/1 is and walk you through the step-by-process of how to subtract one fraction from another.

Want to quickly learn or show students how to calculate 1/1 minus 19/1? Play this very quick and fun video now!

To start with, the number above the line in a fraction is called a numerator and the number below the line is called the denominator.

Why do you need to know this? Well, because to subtract a fractions from another we need to first make sure both fractions have the same denominator.

Let's set up 1/1 and 19/1 side by side so they are easier to see:

1 / 1 - 19 / 1

In this calculation, some of the hard work has already been done for us because the denominator is the same in both fractions. All we need to do is subtract the numerators and keep the denominator as it is:

1 - 19 / 1 = 20 / 1

You're done! You now know exactly how to calculate 1/1 - 19/1. Hopefully you understood the process and can use the same techniques to add other fractions together. The complete answer is below (simplified to the lowest form):

-18

## Convert 1/1 minus 19/1 to Decimal

Here's a little bonus calculation for you to easily work out the decimal format of the fraction we calculated. All you need to do is divide the numerator by the denominator and you can convert any fraction to decimal:

-18 / 1 = -18