Question

(1)Calcule as Multiplicações.simplifique.
a)$\frac{3}{5} .\frac{1}{2} .\frac{2}{15} .\frac{4}{9} =$
b)$\frac{8}{17} . \frac{3}{8} . \frac{17}{3} =$
c)$\frac{1}{3} .\frac{9}{2} .\frac{4}{35} .\frac{7}{8}$
d)$\frac{9}{10} . \frac{100}{45} .\frac{3}{9} =$
e)$\frac{15}{10} .\frac{25}{5}. \frac{18}{36} =$
(2)Efetue as divisões.
a)$\frac{15}{35}: \frac{1}{9}=$
b)$\frac{7}{13} : \frac{8}{}$
c)$\frac{6}{13} : \frac{4}{3} =$
d)$\frac{13}{20} : \frac{1}{2}$
e)$\frac{15}{} : \frac{2}{3} =$
f)$\frac{16}{19} : \frac{8}{5} =$

(3) calcule as potencias
a)$(\frac{7}{15}){2} =$
b)$(\frac{10}{17})=$
c)$(\frac{5}{6}){3}$
d)$(\frac{4}{5}){4}=$
e)$(\frac{17}{100}){0} =$
Com Contas Por Favor

Answer 1

Resposta:

1- Calcule as Multiplicações Simplifique

A)

$\frac{3}{5} \times \frac{1}{2} \times \frac{2}{15} \times \frac{4}{9} = \\ \frac{3}{5} \times \frac{1}{15} \times \frac{4}{9} \\ \frac{1}{5} \times \frac{1}{5} \times \frac{4}{9} \\ \frac{4}{225}$

B)

$\frac{8}{17} \times \frac{3}{8} \times \frac{17}{3} = \\ \frac{1}{17} \times 3 \times \frac{17}{3} \\ \frac{1}{17} \times 17 \\ 1$

C)

$\frac{1}{3} \times \frac{9}{2} \times \frac{4}{35} \times \frac{7}{8} = \\ 3 \times \frac{2}{5} \times \frac{1}{8} \\ 3 \times \frac{1}{5} \times \frac{1}{4} \\ \frac{3}{20}$

D)

$\frac{9}{10} \times \frac{100}{45} \times \frac{3}{9} = \\ \frac{1}{10} \times \frac{100}{45} \times 3 \\ \frac{10}{45} \times 3 \\ \frac{10}{15} \\ \frac{2}{3}$

E)

$\frac{15}{10} \times \frac{25}{5} \times \frac{18}{36} = \\ \frac{15}{10} \times 5 \times \frac{18}{36} \\ \frac{3}{2} \times 5 \times \frac{1}{2} \\ \frac{15}{4}$

2- Efetue as divisões

A)

$\frac{15}{35} \div \frac{1}{9} = \\ \frac{3}{ 7} \times 9 \\ \frac{27}{7}$

B) Está faltando o denominador.

C)

$\frac{6}{13} \div \frac{4}{3} = \\ \frac{6}{13} \times \frac{3}{4} \\ \frac{3}{13} \times \frac{3}{2} \\ \frac{9}{26}$

D)

$\frac{13}{20} \div \frac{1}{2} = \\ \frac{13}{20} \times 2 \\ \frac{13}{10}$

E) Está faltando o denominador

F)

$\frac{16}{19} \div \frac{8}{5} = \\ \frac{16}{19} \times \frac{5}{8} \\ \frac{2}{19} \times 5 \\ \frac{10}{19}$

3- Calcule as potencias

A)

$\frac{7}{15}^{2} \\ \frac{ {7}^{2} }{ {15}^{2} } \\ \frac{49}{225}$

B) tá faltando o expoente

C)

$\frac{5}{6}^{3} \\ \frac{ {5}^{3} }{ {6}^{3} } \\ \frac{125}{216}$

D)

$\frac{4}{5}^{4} \\ \frac{ {4}^{4} }{5^{4} } \\ \frac{256}{625}$

E)

$\frac{17}{100}^{0} \\ 1$

Espero ter ajudado. Se você gostou da minha resposta, poderia me dar um coraçãozinho e melhor resposta? Agradeço desde já. :)