Welcome to the Reciprocal Calculator, where you can quickly calculate the reciprocal of a number. This number can be an integer, decimal or fraction. Fractions include proper fractions, improper fractions or mixed fractions.
What is a reciprocal?
The reciprocal is a number, multiplied by a hypothetical number X, which results in 1. The reciprocal at this time is recorded as 1X. Usually, the reciprocal is expressed as a fraction, sometimes as an integer. All numbers except 0 have reciprocals.
How to calculate the reciprocal?
According to the definition of reciprocal, to calculate the reciprocal of a number, simply divide 1 by the number. Specifically, it can be divided into integer reciprocal, decimal reciprocal and fractional reciprocal.
Integer reciprocal
To find the reciprocal of an integer, just treat the integer as the denominator and the numerator as 1.
For example, the reciprocal of 5 is 15.
Decimal reciprocal
To calculate the reciprocal of a decimal, convert the decimal to a fraction first, and then find the reciprocal of the fraction.
For example, the reciprocal of 0.2.
0.2 = 0.2 * 1010 = 210 = 15
So, the reciprocal of 0.2 is 5.
Fractional reciprocal
To reciprocate a fraction, just swap the numerator and denominator of the fraction. If it is a mixed fraction, you need to convert the mixed fraction to an improper fraction first, and then do the conversion.
For example, the reciprocal of 25 is 52.
What is the reciprocal of 213?
First, convert 213 to an improper fraction.
213 = 2 * 3 + 13 = 73
The reciprocal of 73 is 37.
So, the reciprocal of 213 is 37.
How to use the calculator
The procedure to use the reciprocal calculator is as follows:
- Enter the number in the input box.
- Click Calculate button to calculate the reciprocal of number, or click Reset button to start a new calculation.
Next, let’s look at some examples.
Solved examples using the calculator
Integer reciprocal example
What is the reciprocal of 40?
Enter 40 in the input box.
Then click Calculate button, as shown in the figure, the reciprocal of 40 is 140.
Decimal reciprocal example
What is the reciprocal of 0.25?
Enter 0.25 in the input box.
Then click Calculate button, as shown in the figure, the reciprocal of 0.25 is 4.
Fractional reciprocal example
What is the reciprocal of 57?
Enter 5/7 in the input box.
Then click Calculate button, as shown in the figure, the reciprocal of 57 is 75.
What is the reciprocal of 435?
Enter 4 3/5 in the input box.
Then click Calculate button, as shown in the figure, the reciprocal of 435 is 523.
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