39 times what equals 21?

39 times what equals 21? In other words, what do you multiply by 39 to get 21? If "x" is "what" in the sentence, "39 times what equals 21?", then the equation to solve the problem is as follows:

39 • x = 21

Which can be written as:

39x = 21

To solve the equation above, we need to remove the 39 on the left side to make the x alone. To do that, we divide both sides by 39.

39x/39 = 21/39

39x/39 is x and 21/39 is 0.5385 which means our equation will look like this:

x = 0.5385

Thus, the answer to "39 times what equals 21?" is 0.5385.

To double-check our work, multiply 0.5385 by 39 to see that it equals 21. (Note that our answer on this page is rounded to 4 digits if necessary.)

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39 times what equals 22?
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