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How do you convert 0.63 repeated to a fraction?

Answer
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Hint:A repeating decimal is a decimal in which a digit or a block of digits repeats itself again and again. Such repeating decimals are represented by putting a bar on repeated digits or digits. In this given question we are required to convert a repeating decimal which is 0.6363.... into a fraction. 0.6363.... can be written as 0.6¯3¯, putting a bar on repeating digits.

Complete step by step solution:
We need to assume that x=repeating decimal that is,
x=0.6363.... 0.6¯3¯ ----(1)
Since, it is clearly visible that x is recurring in 2 decimal places so we multiply x by 100.
x×100=100×0.6363....
100x=63.6363.... ----(2)
Now, we subtract equation (1) from equation (2)
100xx=63.6363....0.6363....
99x=63
The repeating digits 63 cancel off and we get left with 99x being non-repeating.
Further, we divide left-hand side and right-hand side by 99
99x99=6399
x=6399
Here, we got x in the form of a fraction. In order to simplify the fraction, we divide 63 by 99.
x=711
Therefore, the answer is 0.6363....=711

Note: Don’t confuse 0.63 (repeating) means 0.6363....Here in this question, we were given 0.63 (repeating) which means both the digits are repeating and the bar is on both the digits. We should not assume that only one digit which is 3 is repeating. If we assume so the question will totally change and become 0.6333.... in this case, the bar would only be on digit 3 which would look like 0.63¯not on the digits 63 which would look like 0.6¯3¯.