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Sunday, December 8, 2013

SP#6: Unit K Concept 10 - Write Repeating Decimal as Rational Number Using Geometric Series

Remember to pay close attention when I'm substituting the numbers into the equation. Don't forget to add five at the end when you're done solving because there was a five in the beginning of the problem.
In the above picture, I found that "a" sub one is 0.25. However, you must convert it to a fraction which would be 25/100. "r' is 1/100 because I took the preceding term and divided it by the first.

This picture is self explanatory, after I found 25/99, I still had to add five. I multiplied five by 99 to find the common denominator and then added to find my final answer.