Tính hợp lý
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Bài 1: Tính hợp lý
a) \( -\frac{1}{6} + \frac{187}{287} + \frac{1}{2} - \frac{1}{3} \)
b) \( \frac{8}{12} + \frac{11}{13} - \frac{10}{6} + \frac{2}{13} \)
c) \( \frac{14}{28} + \frac{6}{13} + \frac{15}{36} - \frac{(-7)}{13} \)
d) \( \frac{4}{7} + \frac{8}{21} + \left(-\frac{1}{2}\right)^2 - \frac{4}{7} + \frac{13}{21} \)
e) \( \frac{7}{12} - \left(-\frac{1}{5}\right) - \frac{5}{6} + \frac{2}{3} + \left(-\frac{1}{5}\right) \)
Bài 1: Tính hợp lý
a) \( -\frac{1}{6} + \frac{187}{287} + \frac{1}{2} - \frac{1}{3} \)
b) \( \frac{8}{12} + \frac{11}{13} - \frac{10}{6} + \frac{2}{13} \)
c) \( \frac{14}{28} + \frac{6}{13} + \frac{15}{36} - \frac{(-7)}{13} \)
d) \( \frac{4}{7} + \frac{8}{21} + \left(-\frac{1}{2}\right)^2 - \frac{4}{7} + \frac{13}{21} \)
e) \( \frac{7}{12} - \left(-\frac{1}{5}\right) - \frac{5}{6} + \frac{2}{3} + \left(-\frac{1}{5}\right) \)