Question

faça as multiplicações e simplifique se possível:

a) 5/6 . 7/4=
b)10/3 . 1/7=
c)6/5 . 4/3=
d)9 . 8/11=
e) 13/2 . 5/13=
f)7/5 . 3/4 . 5/7=​​

Answer 1

Resposta:

$a) \frac{5}{6} \times \frac{7}{4} = \frac{35}{24}= \\ \\ b) \frac{10}{3} \times \frac{1}{7} = \frac{10}{21} \\ \\ c) \frac{6}{5} \times \frac{4}{3} = \frac{24}{15}={8/5} \\ \\ d) \frac{9}{1} \times \frac{8}{11} = \frac{72}{11} \\ \\ e) \frac{13}{2} \times \frac{5}{13} = \frac{65}{26} = {5/2} \\ \\ f) \frac{7}{5} \times \frac{3}{4} \times \frac{5}{7} = \frac{105}{140} = \frac{21}{28} = \frac{3}{4}$

bons estudos...