Question

resolva a) 8/10 + 4/5 + 3/2= b) 10/2-7/4 c) 1/7+3 d) 5/12+5/6-3/4



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Answer 1

a)
$\frac{8}{10} + \frac{4}{5} + \frac{3}{2} = \frac{8 + 8 + 15}{10 } = \frac{31}{10} = 3.1$
b)
$\frac{10}{2} - \frac{7}{4} = \frac{20 - 7}{4} = \frac{13}{4} = 3.25$
c)
$\frac{1}{7} + \frac{3}{1} = \frac{1 + 21}{7} = \frac{22}{7} = 3.142...$
d)
$\frac{5}{12} + \frac{5}{6} - \frac{3}{4} = \frac{5 + 10 - 9}{12} = \frac{6}{12} = 0.5$