What is the reciprocal of 21/54? Here we will define reciprocal of 21/54, and show you how to calculate the reciprocal of 21/54 in fraction form and decimal form.
The reciprocal of 21/54 is a fraction or a number that when multiplied by 21/54 is equal to 1. To get the reciprocal of 21/54 based on that definition, we can make the following equation where "R" is the reciprocal of 21/54.
(21/54) × R = 1
When we solve for R, we get the answer to the reciprocal of 21/54 as a fraction as follows:
(21/54) × R = 1
R = 54/21
Reciprocal of 21/54 = 54/21
You can check that the answer is correct by confirming that 21/54 times the reciprocal of 21/54 is equal to 1, like this:
21/54 × 54/21 = 1
To find the decimal answer to the reciprocal of 21/54, you divide the numerator of the reciprocal by the demoninator of the reciprocal, like this:
54 ÷ 21 ≈ 2.571428571429
Reciprocal of 21/54 ≈ 2.571428571429
Tip: As you may have inferred from our tutorial above, you can quickly get the reciprocal of any fraction, such as 21/54, by switching the numerator and the denominator.
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Reciprocal of 21/55
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