Question

Operações com frações
a 1/2 + 3/2
b 4/3 + 5/3
c 5/6 + 2/6
d 1/2 + 1/3
e 1/2 + 1/4
f 1/3 + 1/4
g 3/4 - 2/3
h 2/5 - 1/3
i 6/4 - 1/7 + 1/2
j 2/9 + 1/8 - 1/6
k 1/2 + 3/1

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Answer 1

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

$b) \frac{4}{3} + \frac{5}{3} = \frac{9}{3} = 3$

$c) \frac{5}{6} + \frac{2}{6} = \frac{7}{6} = 1 \frac{1}{6}$

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

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

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

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

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

$i) \frac{6}{4} - \frac{1}{7} + \frac{1}{2} = \frac{42}{28} - \frac{4}{28} + \frac{14}{28} = \frac{52}{28} = 1 \frac{24}{28} = 1 \frac{6}{7}$

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

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