Q. Write the repeating decimal as a fraction..09090909
Identify Repeating Pattern: Identify the repeating pattern in the decimal.The repeating pattern in the decimal 0.09090909… is 09.
Convert to Fraction: Let x equal the repeating decimal, so x=0.09090909... To convert this into a fraction, we will create an equation that isolates the repeating part.
Multiply by 100: Multiply x by a power of 10 that matches the length of the repeating pattern. Since the repeating pattern is two digits long (09), we multiply x by 100. So, 100x=9.09090909…
Subtract Original: Subtract the original x from the 100x to get rid of the decimal part.100x−x=9.09090909...−0.09090909...
Isolate Repeating Decimal: Perform the subtraction to isolate the repeating decimal. 99x=9
Divide by 99: Divide both sides of the equation by 99 to solve for x.x=999
Simplify Fraction: Simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 9. x=(99)/(999)
Find Final Fraction: Complete the simplification to find the fraction. x=111 So, the repeating decimal 0.09090909… as a fraction is 111.
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