Characterization of repeating and terminating decimals

Reference no: EM13130107

a. Which fractions a/b have terminating decimals?

b. Which fractions a/b have repeating decimals?

c. Sometimes (for example 1/12 ) only part of the decimal repeats while in other cases (for example 1/7 ) the whole decimal repeats. Assuming a/b is a reduced fraction, how can you tell which of these two scenarios will occur? Explain.

*d.* Marcus says he computed and found

0.0588235294

Josie looks at this answer for a second or two and tells Marcus that he is mistaken. Josie did NOT calculate any of the numbers in this decimal. How might Josie have known Marcus calculation is incorrect?

Reference no: EM13130107

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