Question

2/3 x raiz de 1,69 +2/15 - (0,5)²

Answer 1

$Boa \: \: noite!!! \\ \\ \frac{2}{3} \times \sqrt{1.69} + \frac{2}{15} - {(0.5)}^{2} \\ \frac{2}{3} \times \sqrt{ \frac{169}{100} } + \frac{2}{15} - ( { \frac{1}{2} })^{2} \\ \frac{2}{3} \times \frac{13}{10} + \frac{2}{15} - \frac{1}{4} \\ \frac{1}{3} \times \frac{13}{5} + \frac{2}{15} - \frac{1}{4} \\ \frac{52 + 8 - 15}{60} \\ \frac{ {45}^{ \div 15} }{ {60}^{ \div 15} } = \frac{3}{4} \\ \\ Espero \: \: ter \: \: ajudado! :)$