Exemplar exercise problems XVIII — task. Mathematics CBSE, Class 8.

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1. Select the rational numbers from the list which are also the integers.

$\frac{9}{4}$ ,

$\frac{8}{4}$ ,

$\frac{7}{4}$ ,

$\frac{6}{4}$ ,

$\frac{9}{3}$ ,

$\frac{8}{3}$ ,

$\frac{7}{3}$ ,

$\frac{6}{3}$ ,

$\frac{5}{2}$ ,

$\frac{4}{2}$ ,

$\frac{3}{1}$ ,

$\frac{3}{2}$ ,

$\frac{1}{1}$ ,

$\frac{0}{1}$ ,

$\frac{-1}{1}$ ,

$\frac{-2}{1}$ ,

$\frac{-3}{2}$ ,

$\frac{-4}{2}$ ,

$\frac{-5}{2}$ ,

$\frac{-6}{2}$

2. Select those which can be written as a rational number with denominator

$4$ in their lowest form:

$\frac{7}{8}$ ,

$\frac{64}{16}$ ,

$\frac{36}{-12}$ ,

$\frac{-16}{17}$ ,

$\frac{5}{-4}$ ,

$\frac{140}{28}$

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30. Exemplar exercise problems XVIII