Question

(2/5×1/3)+(1/2)elevado à 2

Answer 1

$(\frac{2}{5} \cdot \frac{1}{3} ) + (\frac{1}{2})^{2} \\ \\\frac{2}{15} + \frac{1}{4} \\ \\\frac{2(4) +15(1)}{15 \cdot 4} \\ \\\frac{8 +15}{60} \\ \\ \frac{23}{60}$

Answer 2

Olá !

( 2 / 5 • 1 / 3 ) + ( 1 / 2 )²

= ( 2 • 1 / 5 • 3 ) + ( 1 / 2 )²

= 2 / 15 + ( 1 / 2 )²

= 2 / 15 + ( 1 • 2 / 2 • 2 )

= 2 / 15 + 2 / 4

= 2 • 4 + 1 • 15 / 4 • 15

= 8 + 15 / 4 • 15

= 23 / 4 • 15

= 23 / 60