Question

ALGUEM AJUDA PFV PRECISO DAS CONTAS MONTADAS TAMBEMM

Answer 1

Resposta:

a) $\frac{29}{35}$

b)$\frac{38}{24}$

c)$\frac{8}{15}$

d)$\frac{35}{18}$

e)$\frac{47}{21}$

f)$\frac{-15}{18}$

Explicação passo a passo:

1. a) $\frac{2}{5} +\frac{3}{7} = \frac{14+15}{35} =\frac{29}{35}$

b) $\frac{7}{4}-\frac{1}{6}= \frac{42-4}{24} =\frac{38}{24}$

c)$\frac{2}{5} .\frac{4}{3} = \frac{2.4}{5.3} = \frac{8}{15}$

d)$\frac{5}{9} / \frac{7}{2} = \frac{5}{9} . \frac{7}{2} = \frac{35}{18}$

e)$\frac{-3}{7} + \frac{8}{3} = \frac{-9+56}{21} = \frac{47}{21}$

f)$\frac{-2}{3} - \frac{1}{6} = \frac{-12-3}{18} = \frac{-15}{18}$