Question

Ficarei agradecido caso mandem o resultado junto com as contas.

Answer 1

A)14/5

B)

$\frac{7}{5} - \frac{1}{3} = \frac{21 - 5}{15} = \frac{17}{15}$

C)

$\frac{2}{3} \times \frac{1}{2} \times \frac{2}{5} = \frac{2}{3} \times \frac{1}{5} = \frac{2}{15}$

D)

$\frac{17}{3} - \frac{10}{3} = \frac{7}{3}$

E)

$\frac{2}{3} \div \frac{8}{9} = \frac{2}{3} \times \frac{9}{8} = \frac{3}{4}$

F)

$( \frac{5}{6} ) {}^{2} = \frac{25}{36}$

G)

$\frac{3}{5} + \frac{2}{3} + \frac{1}{2} = \frac{18 + 20 + 15}{30} = \frac{53}{30}$

H)

$\frac{7}{5} \times \frac{1}{3} = \frac{7}{15}$

I)

$\frac{7}{27}$

J)

$\frac{17}{8} + \frac{3}{4} + 2 = \frac{17 + 6 + 16}{8} = \frac{39}{8}$

K)

$( \frac{2}{3} + \frac{3}{4} ) \times \frac{1}{5} \\ \\ (\frac{8 + 9}{12} ) \times \frac{1}{5} \\ \\ \frac{17}{12} \times \frac{1}{5} = \frac{17}{60}$

L)

$( \frac{3}{4} ) {}^{5} = \frac{243}{1.024}$