Civil Service Exam Reviewer · Basic Operations · hard

Express 0.6777… (only the 7 repeats) as a fraction in lowest terms.

1. 67/99
2. 67/90
3. 61/90
4. 67/100

Answer

C. 61/90

Solution

0.6(7) = (67 − 6)/90 = 61/90 = 61/90.

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