Question

3. a) 3/4 . 1/2 =


b) 2/3 . 1/4 . 8/5 =


c) 6/5 . 25/3 . 9/2 =


d) 15/18 . 5/9 =


e) 12/21 . 16/7 =


4. a) (2/5 . 5/3) : 2/3 =


b) (4 - 4/5) : (9 + 1/3) =


c) 7 - [11/2 - 13/4 . (1/2 + 1/5)] =


d) 1/2 . (1/5 + 1/2 . 1/3) - 1/5 . (1/6 + 1/2 . 1/5) =

Answer 1

Resposta:

qual e a pergunta

Explicação passo-a-passo:

colocar aí m

Answer 2

Resposta:

$\frac{3}{4} \times \frac{1}{2} = \frac{6}{4} = \frac{3}{2}$

$\frac{2}{3} \times \frac{1}{4} \times \frac{8}{5} = \frac{40}{24}$

$\frac{6}{5} \times \frac{25}{3} \times \frac{9}{2} = \frac{36}{1125}$

$\frac{15}{18} \times \frac{5}{9} = \frac{135}{90}$

$\frac{12}{21} \times \frac{16}{7} = \frac{84}{336}$

Exercício 4:

$\frac{2}{5} \times \frac{5}{3} \div \frac{2}{3} = \frac{6}{25} \times \frac{3}{2} = \frac{12}{75}$

$\frac{4 - 4}{5} \div \frac{9 + 1}{3} = \frac{0}{5} \times \frac{3}{10} = \frac{0}{15} = 15$

o exercício C e D não sei fazer!