Question

Escreva duas frações equivalentes para cada item :

a) 2 b) 4 c) 7 d) 21 e) 8 f) 17
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5 9 3 6 15 14

Answer 1

$a) \\ \\ \dfrac{2}{5} \ \dfrac{*}{*} \ \dfrac{2}{2} \ = \dfrac{4}{10} \\ \\ \\ \dfrac{2}{5} \ \dfrac{*}{*} \ \dfrac{3}{3} \ = \dfrac{8}{15}$

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$b) \\ \\ \dfrac{4}{9} \ \dfrac{*}{*} \ \dfrac{2}{2} \ = \dfrac{8}{9} \\ \\ \\ \dfrac{4}{9} \ \dfrac{*}{*} \ \dfrac{3}{3} \ = \dfrac{12}{27}$

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$c) \\ \\ \dfrac{7}{3} \ \dfrac{*}{*} \ \dfrac{2}{2} \ = \dfrac{14}{6} \\ \\ \\ \dfrac{7}{3} \ \dfrac{*}{*} \ \dfrac{3}{3} \ = \dfrac{21}{9}$

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$d) \\ \\ \dfrac{21}{6} \ \dfrac{\div}{\div} \ \dfrac{3}{3} \ = \dfrac{7}{2} \\ \\ \\ \dfrac{21}{6} \ \dfrac{*}{*} \ \dfrac{2}{2} \ = \dfrac{42}{12}$

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$e) \\ \\ \dfrac{8}{15} \ \dfrac{*}{*} \ \dfrac{2}{2} \ = \dfrac{16}{30} \\ \\ \\ \dfrac{8}{15} \ \dfrac{*}{*} \ \dfrac{3}{3} \ = \dfrac{24}{45}$

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$f) \\ \\ \ \dfrac{17}{14} \ \dfrac{*}{*} \ \dfrac{2}{2} \ = \dfrac{34}{28} \\ \\ \\ \dfrac{17}{14} \ \dfrac{*}{*} \ \dfrac{3}{3} \ = \dfrac{51}{42}$