Question

Calcule:
(2/3 - 1/2)² + 5/9 * 3/4

Answer 1

Resposta:

Olá bom dia!

(2/3 - 1/2)² + 5/9 * 3/4

= [(4 - 3)/6)]² + 5/3 * 1/4

= (1/6)² + 5/12

= 1²/6² + 5/12

= 1/36 + 5/12

= (1 + 3*5) / 36

= (1 + 15) / 36

= 16/36

= 4/9

Answer 2

Resposta:

$(\frac{2}{3} -\frac{1}{2})^{2}+ \frac{5}{9}. \frac{3}{4} =\\ \\ (\frac{2}{3} )^{2} -2.\frac{2}{3}. \frac{1}{2} +(\frac{1}{2} )^{2} +\frac{15}{36} =\\ \\ \frac{4}{9} -\frac{4}{6} +\frac{1}{4} +\frac{5}{12} \\ \\ mmc=108\\ \\ \frac{48-72+27+45}{108} =\frac{48}{108} =simplificando=\frac{4}{9} \\ \\ resposta:~~~~\frac{4}{9}$