Question

Escreva as frações equivalentes a 2/3 e a 3/4 com denominador 12

Answer 1

$\frac{2}{3}= \frac{x}{12}$ ---multiplica cruzado

$3x = 12 . 2 -->3x =24 --> x =8$

$\frac{2}{3}= \frac{8}{12}$
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$\frac{3}{4}= \frac{x}{12}$

$4x = 12 . 3-->4x=36--> x = 9$

$\frac{3}{4}= \frac{9}{12}$