JokerSmart
  • JokerSmart
___ What is 0.12 expressed as the quotient of two integers in simplest form?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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JokerSmart
  • JokerSmart
\[\frac{ 3 }{ 25 }\] I believe.
mathstudent55
  • mathstudent55
This is how I learned to find a fraction for a repeating, non-terminating decimal. I'll show it to you step by step.
JokerSmart
  • JokerSmart
Thank you for taking the time to help me out. ^_^

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mathstudent55
  • mathstudent55
Call the number x, and write the number leaving space above it, like this: |dw:1432836892783:dw|
mathstudent55
  • mathstudent55
Sorry, it's better like this, leaving room to the left of the number, too. |dw:1432836947882:dw|
mathstudent55
  • mathstudent55
Since there are 2 repeating decimal places, 0.1212..., we need 10^2. You always use 10 to the power that is the number off repeating decimals. 10^2 = 100, so we multiply both sides by 100 and write the new equation above the original equation: |dw:1432837075824:dw|
mathstudent55
  • mathstudent55
Do you follow so far?
JokerSmart
  • JokerSmart
Ah that's right! I think I have something similar like that in my notes.
mathstudent55
  • mathstudent55
Now you subtract the bottom equation from the top equation, like this: |dw:1432837224992:dw|
mathstudent55
  • mathstudent55
Since 99x = 12, we simply divide both sides by 99 and reduce. |dw:1432837294475:dw|
mathstudent55
  • mathstudent55
The answer is \(\dfrac{4}{33} \)
JokerSmart
  • JokerSmart
So 12.121212 - 0.121212 = 12 I see. Ah thank you so much. I should probably write this down for future reference. xD I appreciate your help! I as a bit off from the answer, haha
mathstudent55
  • mathstudent55
Now notice why your answer above is incorrect. |dw:1432837370538:dw|
JokerSmart
  • JokerSmart
Yeah, I missed something around there.
mathstudent55
  • mathstudent55
Your answer was for the terminating, non-repeating decimal 0.12 The question is about the repeating, non-terminating decimal 0.121212... They are different numbers. The non-terminating one is a little larger than the terminating one.

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