Question

(1/4)^2×4/5+2/5÷(2/3)^3

Answer 1

= (1/4)^2×4/5+2/5÷(2/3)^3
= 1/16 . 4/5 + 2/5 ÷ 8/27
= 4/16(:4)/(:4) . 1/5+2/5 . 27/8
= 1/4.1/5 + 2/8(:2)/(:2) . 27/5
= 1/20 + 1/4.27/5
= 1/20 + 27/20
= 28/20 (:4)/(:4)
= 7/5

Resp.: 7/5

Answer 2

Resposta:

$\frac{7}{5}$

Explicação passo-a-passo:

$( \frac{1}{4} ) {}^{2} \times \frac{4}{5} + \frac{2}{5} \div ( \frac{2}{3} ) {}^{3}$

$\frac{1}{16} \times \frac{4}{5} + \frac{2}{5} \div \frac{8}{27} = \frac{4}{80} + \frac{2}{5} \times \frac{27}{8} = \frac{4}{80} + \frac{54}{40} = mmc = 80$

$\frac{4 + 108}{80} = \frac{112}{80} = \div \frac{16}{16} = \frac{7}{5}$