What is the reciprocal of 21/85? Here we will define reciprocal of 21/85, and show you how to calculate the reciprocal of 21/85 in fraction form and decimal form.
The reciprocal of 21/85 is a fraction or a number that when multiplied by 21/85 is equal to 1. To get the reciprocal of 21/85 based on that definition, we can make the following equation where "R" is the reciprocal of 21/85.
(21/85) × R = 1
When we solve for R, we get the answer to the reciprocal of 21/85 as a fraction as follows:
(21/85) × R = 1
R = 85/21
Reciprocal of 21/85 = 85/21
You can check that the answer is correct by confirming that 21/85 times the reciprocal of 21/85 is equal to 1, like this:
21/85 × 85/21 = 1
To find the decimal answer to the reciprocal of 21/85, you divide the numerator of the reciprocal by the demoninator of the reciprocal, like this:
85 ÷ 21 ≈ 4.047619047619
Reciprocal of 21/85 ≈ 4.047619047619
Tip: As you may have inferred from our tutorial above, you can quickly get the reciprocal of any fraction, such as 21/85, by switching the numerator and the denominator.
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Reciprocal of 21/86
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