Lemma
EasyRatio, proportion & variation
OpenStax, Contemporary Mathematics §3.4 Rational Numbers · Example 2 · Algebra · Ratio, proportion & variation

Rational Numbers · Example 2

Determine which of the following are rational numbers:

(a)
(b)
(c)
(d)
(e)

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OpenStax, Contemporary Mathematics · §3.4 Rational Numbers · Example 2

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