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How do you change 12.39% to a decimal?

Answer
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Hint: We need to find the fraction form and the decimal of 12.39%. We convert the percentage in fraction by changing the position of the decimal point. To compensate for that we have to multiply 110. We convert the fraction into decimal.

Complete step-by-step solution:
For the given percentage 12.39%, we first convert it into fraction form.
We know for any arbitrary percentage value of a%, we can write it as a100. The percentage is to find the respective value out of 100.
Now for 12.39%, we can write it as 12.39100. Now we simplify the fraction which in turn gives the decimal.
We move the decimal point to the left one position. The decimal goes to the leftmost position. We compensate the movement of the decimal for multiplying 110 to the main number 12.39. The fraction 110 is equal to 0.1.
We explain the first two steps. The decimal starts from its actual position in 12.39.
Now it crosses one digit to the left of its current position. The number changes from 12.39 to 1.239. This means we multiplied 110. 12.39100 changes to 1.23910.
There is one more digit before decimal.
Now in the second step the point goes to the leftmost position. The number again changes from 1.23910 to 0.1239. We again multiplied 101 for the decimal’s movement.
The decimal form of 12.39% is 0.1239.

Note: The value of the fraction is actually the unitary value of 12.39 out of 100. Therefore, in percentage value we got 12.39 as the percentage. Percentage deals with the ratio out of 100. The ratio value for both fraction and percentage is the same.

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