# How to Calculate 1/1 Times 21/15

Are you looking to work out and calculate how to multiply 1/1 by 21/15? In this really simple guide, we'll teach you exactly what 1/1 times 21/15 is and walk you through the step-by-process of how to multiply two fractions together.

Just a quick reminder here that the number above the fraction line is called the numerator and the number below the fraction line is called the denominator.

To multiply two fractions, all we need to do is multiply the numerators and the denominators together and then simplify the fraction if we can.

Let's set up 1/1 and 21/15 side by side so they are easier to see:

The next step is to multiply the numerators on the top line and the denominators on the bottom line:

From there, we can perform the multiplication to get the resulting fraction:

You're done! You now know exactly how to calculate 1/1 x 21/15. 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):

*Note: since the numerator is greater than the denominator in this example, we've simplified it into a mixed fraction.*

## Convert 1/1 times 21/15 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:

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### Preset List of Fraction Multiplication Examples

Below are links to some preset calculations that are commonly searched for: