Question

4) Resolva as operações:
a)2/3×3/4=
b) 4/3×1/2=
c) 5/2×1/6=
d)2/3÷3/4=
e)3/5÷2/7=
f)1/6÷3/2=
URGEEENTE! PFVR

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Answer 1

$\rm a)~\sf\dfrac{\diagdown\!\!\!2^1}{\diagup\!\!\!3}\cdot\dfrac{\diagup\!\!\!3}{\diagdown\!\!\!4_2}=\dfrac{1}{2}\blue{\checkmark}\\\rm b)~\sf\dfrac{\diagup\!\!\!\!4^2}{3}\cdot\dfrac{1}{\diagup\!\!\!\!2}=\dfrac{2}{3}\blue{\checkmark}\\\rm c)~\sf\dfrac{5}{2}\cdot\dfrac{1}{6}=\dfrac{5}{12}\blue{\checkmark}\\\rm d)~\sf\dfrac{2}{3}\div\dfrac{3}{4}=\dfrac{2}{3}\cdot\dfrac{4}{3}=\dfrac{8}{9}\blue{\checkmark}\\\rm e)~\sf\dfrac{3}{5}\div\dfrac{2}{7}=\dfrac{3}{5}\cdot\dfrac{7}{2}=\dfrac{21}{10}\blue{\checkmark}\\\rm f)~\sf\dfrac{1}{6}\div\dfrac{3}{2}=\dfrac{1}{\diagup\!\!\!6_3}\cdot\dfrac{\diagup\!\!\!2^1}{3}=\dfrac{1}{9}\blue{\checkmark}$