**Multiplicative Inverse of 21**

Multiplicative Inverse of 21 is defined as what you can multiply with 21 to get 1.

If the Multiplicative Inverse of 21 is x, the problem can be written as a function as follows:

21(x) = 1

Thus, to get the answer, we divide 1 by 21 like this:

1 / 21 = 0.04761905

Note that the answer is rounded to the nearest 8 decimals if necessary. We can prove that the answer is correct: 0.04761905 multiplied by 21 equals 1.

The Multiplicative Inverse of postive 21 has a positive answer and the Multiplicative Inverse of negative 21 has a negative answer. Therefore, the Multiplicative Inverse of -21 is -0.04761905.

**Multiplicative Inverse of 22**

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