
How do you convert repeating as a fraction?
Answer
446.1k+ views
Hint: In this problem we need to convert the given decimal into the fraction. Generally, the conversion of the decimals into fractions depends on whether the digits in the decimal are being repeated or not. In the problem they have mentioned that the digits are repeating. So, we will first assume the given decimal is equal to a variable let’s say . Now we will observe how many digits are repeated in the given decimal. We need to multiply with where is the number of repeated digits. Now we will subtract both the values and simplify it to get the result.
Complete step-by-step solution:
Given decimal .
Let
Given that is being repeated. In we have digits. So, we will multiply with on both sides of the above equation, then we will get
We know that . Substituting this value in the above equation, then we will have
Given that is being repeated, so we can write
Subtracting the value of from the above equation, then we will get
Dividing the above equation with on both sides, then we will get
Cancelling the which is in both numerator and denominator in the left-hand side, then we will get
We can write and . Substituting these values in the above equation, then we will get
Cancelling the which is in both numerator and denominator, then we will have
At the beginning we have assumed that . From this we can write
Hence the fractional form of the given decimal is .
Note: In this problem they have particularly mentioned that the digits are repeated in the given decimal value. So, we have followed the above-mentioned method. If they have not mentioned that the digits are repeated, then it can be easier to convert the given decimal value into fraction. We have two digits after the decimal so we will divide the given number with and remove the decimal point. Then we will get .
Complete step-by-step solution:
Given decimal
Let
Given that
We know that
Given that
Subtracting the value of
Dividing the above equation with
Cancelling the
We can write
Cancelling the
At the beginning we have assumed that
Hence the fractional form of the given decimal
Note: In this problem they have particularly mentioned that the digits are repeated in the given decimal value. So, we have followed the above-mentioned method. If they have not mentioned that the digits are repeated, then it can be easier to convert the given decimal value into fraction. We have two digits after the decimal so we will divide the given number with
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