Q. Write the repeating decimal as a fraction.0.667667667
Identify Repeating Pattern: Let's identify the repeating pattern in the decimal. The digits "667" repeat indefinitely.Pattern identified: 0.667667667…=0.667+0.000667+0.000000667+…
Express Terms as Fractions: Express each term in the pattern as a fraction.0.667667667...=0.667+0.000667+0.000000667+...=1000667+1000000667+1000000000667+...
Recognize Geometric Series: Recognize that the series 1000667+1000000667+1000000000667+… forms a geometric series.Find the common ratio (r) of the geometric series by dividing two consecutive terms.(1000000667)/(1000667)=1000000667×6671000=10001Common Ratio (r):10001
Find Common Ratio: Write the repeating decimal as a fraction using the formula for the sum of an infinite geometric series, which is a1/(1−r), where a1 is the first term.Substitute a1=667/1000 and r=1/1000 into the formula.(667/1000)/(1−1/1000)=(667/1000)/(999/1000)=667/999
Write as Fraction: Simplify the fraction.1000667×9991000=999667So, 0.667667667…=999667
More problems from Write a repeating decimal as a fraction