Question

Se X= 2/5+1% e y= 0,5+3%, então quanto vale X+Y?​

Answer 1

Explicação passo-a-passo:

.

$\dfrac{2}{5} + 1\% + 0.5 + 3\%$

$\dfrac{2}{5} + \dfrac{1}{100} + \dfrac{5 \div 5}{10 \div 5} + \dfrac{3}{100}$

$\dfrac{2}{5} + \dfrac{1}{100} + \dfrac{1}{2} + \dfrac{3}{100}$

$\dfrac{2}{5} + \dfrac{1 + 3}{100} + \dfrac{1}{2}$

$\dfrac{2}{5} + \dfrac{4}{100} + \dfrac{1}{2}$

$\dfrac{2}{5} + \dfrac{4 \div 2}{100 \div 2} + \dfrac{1}{2}$

$\dfrac{2}{5} + \dfrac{2}{50} + \dfrac{1}{2}$

$\dfrac{20 + 2 + 25}{50}$

$\dfrac{47}{50}$

Answer 2

$\large\boxed{\begin{array}{l} \dfrac{2}{5} + 1\% + 0,5 + 3\% \\ \\ \dfrac{2}{5} + \dfrac{1}{100} + \dfrac{1}{2} + \dfrac{3}{100} \\ \\ \dfrac{2}{5} + \dfrac{1 + 3}{100} + \dfrac{1}{2} \\ \\ \dfrac{2}{5} + \dfrac{4 \div 2}{100 \div 2} + \dfrac{1}{2} \\ \\ \dfrac{2}{5} + \dfrac{2}{50} + \dfrac{1}{2} \\ \\ \dfrac{20 + 2 + 25}{50} \\ \\ \boxed{ \boxed{ \dfrac{47}{50} }} \checkmark\end{array}}$