Question

me ajudem gente por favor​

Answer 1

Resposta:

b.

$\frac{5}{6} + \frac{2}{3} = \frac{5 + 4}{6} = \frac{9}{6}$

c.

$\frac{4}{5} + \frac{2}{3} = \frac{12+ 10}{15} = \frac{22}{15}$

d.

$\frac{9}{2} + \frac{7}{4} + \frac{2}{3} = \frac{54 + 21 + 8}{12} = \frac{83}{12}$

e.

$\frac{2}{5} + \frac{1}{10} + \frac{1}{2} = \frac{4 + 1 + 5}{10} = \frac{10}{10} = 1$

f.

$\frac{2}{7} + \frac{1}{10} + \frac{3}{2} = \frac{20 + 7 + 105}{70} = \frac{132}{70} = \frac{66}{35}$

g.

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

h.

$\frac{5}{6} - \frac{1}{3} = \frac{5 - 2}{6} = \frac{3}{6} = \frac{1}{2}$

i.

$\frac{4}{5} - \frac{2}{7} = \frac{28 - 10}{35} = \frac{18}{35}$

j.

$\frac{7}{8} - \frac{1}{6} = \frac{21 - 4}{24} = \frac{17}{4}$

k.

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

l.

$\frac{8}{10} - \frac{1}{5} = \frac{4}{5} - \frac{1}{5} = \frac{4 - 1}{5} = \frac{3}{5}$

m.

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

n.

$1 - \frac{1}{6} = \frac{6 - 1}{6} = \frac{5}{6}$