Question

RESUELVA LAS SIGUIENTES OPERACIONES COMBINADAS
A) 5/12 - 7/3:(4/3+2)
B)5/36-(7/16+1/4:3/5
C)6/5:9/10-(2-7/12)+7/24
D)-3/8[3-3/5-(17/20-1).(1/3-3)]
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Answer 1

$A) =\frac{5}{12}-\frac{7}{3}:(\frac{4}{3}+2 )\\\\=\frac{5}{12}-(\frac{7}{3}:\frac{10}{3}) \\\\=\frac{5}{12}-\frac{7}{10}\\\\=-\frac{17}{60}$

$B) =\frac{5}{36} -(\frac{7}{16} +\frac{1}{4}:\frac{3}{5} )\\\\= \frac{5}{36}-(\frac{7}{16}+\frac{5}{12} ) \\\\=\frac{5}{36}-\frac{41}{48} \\\\= -\frac{7}{16}$

$C) \frac{6}{5}:\frac{9}{10}-(2-\frac{7}{12})+\frac{7}{24} \\\\\frac{4}{3} -(\frac{17}{12} )+\frac{7}{24} \\\\= \frac{5}{24}$

$D)= -\frac{3}{8}(3-\frac{3}{5}-(\frac{17}{20}-1 )*(\frac{1}{3}-3) ) \\\\=-\frac{3}{8}(3-\frac{3}{5}-(-\frac{3}{20} )*(-\frac{8}{3}) ) \\\\=-\frac{3}{8}(3-\frac{3}{5}-\frac{2}{5} ) \\\\=-\frac{3}{8}(2)\\\\= - \frac{3}{4}$