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Question
Math
Posted 9 months ago
0.540 . \overline{54} as a fraction in lowest terms.
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Answer from Sia
Posted 9 months ago
Solution by Steps
step 1
Let's denote the repeating decimal 0.540.\overline{54} as xx
step 2
Write xx as 0.545454...0.545454...
step 3
Multiply xx by 100 to shift the decimal two places to the right: 100x=54.545454...100x = 54.545454...
step 4
Subtract the original xx from 100x100x: 100xx=54.545454...0.545454...100x - x = 54.545454... - 0.545454...
step 5
Simplify the subtraction to find 99x=5499x = 54
step 6
Divide both sides by 99 to solve for xx: x=5499x = \frac{54}{99}
step 7
Simplify the fraction by dividing both numerator and denominator by their greatest common divisor, which is 9: x=54÷999÷9x = \frac{54 \div 9}{99 \div 9}
step 8
The fraction in lowest terms is x=611x = \frac{6}{11}
Answer
611\frac{6}{11}
Key Concept
Converting repeating decimals to fractions
Explanation
To convert a repeating decimal to a fraction, express the repeating decimal as a variable, manipulate the equation to isolate the repeating part, and then solve for the variable to find the fraction in lowest terms.

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