SOF International Mathematics Olympiad (IMO)
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Set A
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2026
.
Sample
Which type of decimal expansion does the rational number 8/2 have?
Explanation
Explanation
A fraction has a terminating decimal expansion exactly when the denominator (in lowest terms) has no prime factors other than 2 and 5. Here 2 = 2, so 8/2 = 4.0 terminates.
PRO TIP
Re-check your working by substituting the answer back into the original question.
Related Questions
Solve the pair of linear equations for x: 5x + 3y = 24 and 4x + -1y = 9.