Question

Quem responder marco como melhor resposta

Answer 1

Resposta:

Explicação passo a passo:

a)

$mmc(2,3,4)=12$

$\frac{1}{2} +\frac{1}{3} +\frac{1}{4} =$

$\frac{6}{12} +\frac{4}{12} +\frac{3}{12} =$

$\frac{13}{12}$

b)

$mmc(2,3,6)=6$

$\frac{3}{2} +\frac{1}{6}+\frac{2}{3} =$

$\frac{9}{6} +\frac{1}{6} +\frac{4}{6} =$

$\frac{14}{6} =\frac{7}{3}$

c)

$mmc(2,3,4)=12$

$\frac{1}{4} +\frac{1}{3} +\frac{3}{2} =$

$\frac{3}{12} +\frac{4}{12}+\frac{18}{12} =$

$\frac{25}{12}$

d)

$mmc(4,6)=12$

$2+\frac{5}{6} +\frac{3}{4} =$

$\frac{24}{12} +\frac{10}{12} +\frac{9}{12} =$

$\frac{43}{12}$

e)

$mmc(2,4)=4$

$\frac{5}{2} +\frac{13}{4} =\frac{10}{4} +\frac{13}{4} =\frac{23}{4}$

f)

$mmc(6,8)=24$

$1+\frac{5}{6} +\frac{7}{8} =$

$\frac{24}{24} +\frac{20}{24}+\frac{21}{24} =$

$\frac{65}{24}$

g)

$mmc(3,5)=15$

$\frac{10}{3} +\frac{11}{5}=$

$\frac{50}{15} +\frac{33}{15} =$

$\frac{83}{15}$

h)

$mmc(2,4,5)=20$

$\frac{1}{4} +\frac{2}{5} +\frac{3}{2} =$

$\frac{5}{20} +\frac{8}{20}+\frac{30}{20} =\frac{43}{20}$