Question

faça as operações com frações.

alguem pode me ajudar preciso pra hj...​

Answer 1

Resposta:

a)

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

b)

$\frac{4}{5} + \frac{5}{5} = \frac{4 + 5}{5} = \frac{9}{5}$

c)

$\frac{5}{6} + \frac{2}{6} = \frac{5 + 2}{6} = \frac{7}{6}$

d)

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

e)

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

f)

$\frac{1}{3} + \frac{1}{4} = \frac{4 + 3}{12} = \frac{7}{12}$

g)

$\frac{3}{4} - \frac{2}{3} = \frac{9 - 8}{12} = \frac{1}{12}$

h)

$\frac{2}{5} - \frac{1}{3} = \frac{6 - 5}{15} = \frac{1}{15}$

i)

$\frac{6}{4} - \frac{1}{7} + \frac{1}{2} = \frac{42 - 4 + 14}{28} = \frac{52}{28} \div 4 = \frac{13}{4}$

j)

$\frac{2}{9} + \frac{1}{8} - \frac{1}{6} = \frac{16 + 9 - 12}{72} = \frac{13}{72}$

k)

$\frac{1}{2} + 3 = \frac{1 + 6}{2} = \frac{7}{2}$