Question

You are given a fraction in simplest form. The numerator is not zero. When you write the fraction as a decimal, it is a repeating decimal. Which numbers from 1 to 10 could be the denominator?

Answer 1

answer

You could easily do that yourself, with pencil, and about the same amount of time it took you to post the question here. If you go through and try them ... 1/1, 1/2, 1/3, 1/4, 1/5... etc., you'll find that the thirds, sixths, sevenths, and ninths produce repeating decimals. The oneths, tooths, fourths, fifths, eighths, and tenths don't.