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Which of the following rational numbers lie between \(\frac{-7}{10}\) and \(\frac{-1}{4}\) ?

  • A.\(\frac{5}{-8}, \frac{-2}{3}, \frac{-3}{5}\)
  • B.\(\frac{-3}{5}, 0, \frac{-1}{5}\)
  • C.\(\frac{-2}{3}, \frac{-3}{5}, \frac{-3}{4}\)
  • D.\(\frac{5}{-8}, \frac{2}{3}, \frac{-3}{5}\)

Answer: A

The numbers \(\frac{5}{-8}, \frac{-2}{3}, \frac{-3}{5}\) lie between the two.

As decimals, \(\frac{-7}{10} = -0.7\) and \(\frac{-1}{4} = -0.25\). The three numbers are -0.625, about -0.667 and -0.6, all greater than -0.7 and less than -0.25.

The other sets each contain a number outside the range: 0 and \(\frac{-1}{5} = -0.2\) are greater than -0.25, \(\frac{-3}{4} = -0.75\) is less than -0.7, and \(\frac{2}{3}\) is positive.

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