Question

Resolva esse expressõa.

passo a passo ​

Answer 1

$b) \frac{1}{7} - \frac{49}{27} \div ( \frac{7}{3} ) {}^{3}$

$= \frac{1}{7} - \frac{49}{27} \div \frac{343}{27}$

$= \frac{1}{7} - \frac{49}{27} \times \frac{27}{343}$

$= \frac{1}{7} - 49 \times \frac{1}{343}$

$= \frac{1}{7} - \frac{1}{7}$

$= 0$