Question

Determine o resultado das operações abaixo.
a) 2/3×3/2=
b) 2/3×2/7 =
c) 9/2:7/3=
d) 8/3:5/9=​

Answer 1

Resposta:

Abaixo.

Explicação passo-a-passo:

$a)\frac{2}{3} .\frac{3}{2} =\frac{2.3}{3.2} =\frac{6}{6}=1$

$b)\frac{2}{3} .\frac{2}{7} =\frac{2.2}{3.7} =\frac{4}{21}$

$c)\frac{9}{2}/\frac{7}{3} =\frac{9}{2} .\frac{3}{7} =\frac{9.3}{2.7}=\frac{27}{14}$

$d)\frac{8}{3} /\frac{5}{9} =\frac{8}{3}.\frac{9}{5}=\frac{8.9}{3.5}=\frac{72}{15}=\frac{24}{5}$

Answer 2

Resposta:

Bom dia!

Explicação passo-a-passo:

Vamos lá!

$\dfrac{2}{3} \cdot\dfrac{3}{2} =\dfrac{6}{6} =\boxed{1}\\\\\\\dfrac{2}{3} \cdot\dfrac{2}{7} =\boxed{\dfrac{4}{21} }\\\\\\\dfrac{9}{2}:\dfrac{7}{3} =\dfrac{9*3}{2*7}=\boxed{\dfrac{27}{14} }\\\\\\\dfrac{8}{3}:\dfrac{5}{9} =\dfrac{8*9}{3*5}=\dfrac{72}{15}=\boxed{\dfrac{24}{5} }$