What is 81 times 4/9?

How do you multiply 81 by 4/9? Here we will show you step-by-step how to solve 81 times 4/9, which can be written as follows:

Step 1: Setup
First of all, note that 81 is the same as 81/1 since 81 divided by 1 is 81. Therefore, start by setting up the problem like this:

Step 2: Multiply
Multiply the numerators together (81 x 4 = 324) and multiply the denominators together (1 x 9 = 9) and make it into one fraction like so:

324

Step 3: Minimize
The greatest common factor of 324 and 9 is 9. Minimize the fraction by dividing the numerator and the denominator by its greatest common factor to get:

Step 4: Convert
Convert the improper fraction above to a whole number to get the answer:

That's it! Now you know how to calculate 81 times 4/9.

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