Tinh hợp lí
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Bài 3. Tinh hợp lí
a) \(-\frac{5}{11} + \left( -\frac{6}{11} + 1 \right)\)
d) \(\frac{3}{13} - \left( -\frac{4}{13} + \frac{3}{13} \right)\)
g) \(\frac{3}{25} + \frac{7}{25} + \frac{18}{25}\)
b) \(\frac{2}{3} + \left( \frac{5}{7} - \frac{2}{3} \right)\)
e) \(\frac{14}{9} + \frac{11}{8} - \frac{5}{9}\)
h) \(\frac{5}{8} + \frac{12}{11} - \frac{3}{4} + \frac{1}{11}\)
n) \((72,69 + 18,46) - (8,46 + 22,69)\)
m) \(8,65 + 281, 35 - 26,75 - 13,25\)
p) \(2,07 - 7,64 - ( -8,79) + 1,21 - 7,36\)
f) \(\frac{31}{17} - \frac{6}{14} - \frac{8}{14} - \frac{14}{17}\)
k) \(-\frac{5}{6} - \frac{23}{6} + 2 \frac{5}{8}\)
q) \(3,78 \cdot 80 + 20 \cdot 3,78\)
Bài 3. Tinh hợp lí
a) \(-\frac{5}{11} + \left( -\frac{6}{11} + 1 \right)\)
d) \(\frac{3}{13} - \left( -\frac{4}{13} + \frac{3}{13} \right)\)
g) \(\frac{3}{25} + \frac{7}{25} + \frac{18}{25}\)
b) \(\frac{2}{3} + \left( \frac{5}{7} - \frac{2}{3} \right)\)
e) \(\frac{14}{9} + \frac{11}{8} - \frac{5}{9}\)
h) \(\frac{5}{8} + \frac{12}{11} - \frac{3}{4} + \frac{1}{11}\)
n) \((72,69 + 18,46) - (8,46 + 22,69)\)
m) \(8,65 + 281, 35 - 26,75 - 13,25\)
p) \(2,07 - 7,64 - ( -8,79) + 1,21 - 7,36\)
f) \(\frac{31}{17} - \frac{6}{14} - \frac{8}{14} - \frac{14}{17}\)
k) \(-\frac{5}{6} - \frac{23}{6} + 2 \frac{5}{8}\)
q) \(3,78 \cdot 80 + 20 \cdot 3,78\)