Asked by lily
How do you write repeating decimals as fractions?
There's directions in my book,but I don't understand it?
For example, how would you write as a fraction 0.81 with the 81 repeating?
There's directions in my book,but I don't understand it?
For example, how would you write as a fraction 0.81 with the 81 repeating?
Answers
Answered by
bobpursley
multiply the .818181818 by 100.
81.818181818
Now subtract the originalnumber, and get
81
but that is 99 of the original.
81/99 is the equivalent fraction
Now figure out why I multiplied by 100.
What would I have multiplied by if the repeating number were .345345345?
81.818181818
Now subtract the originalnumber, and get
81
but that is 99 of the original.
81/99 is the equivalent fraction
Now figure out why I multiplied by 100.
What would I have multiplied by if the repeating number were .345345345?
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