Question

Urgente! Aplique a técnica de cancelamento nas multiplicações abaixo e determine os produtos. a) 2/3 x 5/2 b) 5/14 x 7/2 c) 1/3 x 4/15 x 5/2 d) 20/21 x 3/10 x 7/2 URGENTE ME AJUDEMMMMM

Answer 1

$\tt{a)}~\sf{\dfrac{\diagup\!\!\!\!2}{3}\times\dfrac{5}{\diagup\!\!\!\!2}=\dfrac{5}{3}}\\\tt{b)}~\sf{\dfrac{5}{\diagup\!\!\!\!1~\diagup\!\!\!\!4}\times\dfrac{\diagup\!\!\!\!7}{2}=\dfrac{5}{4}}\\\tt{c)}~\sf{\dfrac{1}{3}\times\dfrac{\diagup\!\!\!\!4^2}{\diagup\!\!\!\!1~\diagup\!\!\!\!5_{3}}\times\dfrac{\diagup\!\!\!\!5}{\diagup\!\!\!\!2}=\dfrac{2}{9}}\\\tt{d)}~\sf{\dfrac{\diagup\!\!\!\!2~\diagup\!\!\!\!0}{\diagup\!\!\!\!2~\diagup\!\!\!\!1_{\diagup\!\!\!\!3}}\times\dfrac{\diagup\!\!\!\!3}{1~\diagup\!\!\!\!0}\times\dfrac{\diagup\!\!\!\!7}{\diagup\!\!\!\!2}=1}$