Thực hiện phép tính
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Bài 8: Thực hiện phép tính
1) -\(\left(-\frac{3}{5} + \frac{3}{4}\right) - \left(-\frac{3}{4} + \frac{2}{5}\right)\)
2) \(\frac{13}{23} - \frac{-15}{4} + \left(\frac{10}{23} - \frac{1}{4}\right)\)
3) \(-\frac{25}{27} + \frac{31}{42} - \left(-\frac{7}{27} - \frac{3}{42}\right)\)
4) \(8 - \frac{2}{9} - \frac{5}{12}\)
5) \(11 - \frac{3}{13} \left(\frac{2}{4} + \frac{5}{3}\right)\)
6) \(\left(6 \frac{5}{7} + 2 \frac{7}{9}\right) - 4 \frac{5}{7}\)
Bài 9: Thực hiện phép tính
1) \(\frac{1}{6} \left[\frac{1}{6} - \left(-\frac{7}{4} + \frac{9}{12}\right)\right]\)
2) \(\frac{2}{3} - \left(-\frac{7}{4} + \frac{1}{2} - \frac{3}{8}\right)\)
3) \(-\frac{1}{24} \left[-\frac{1}{4} - \left(-\frac{1}{2} + \frac{7}{8}\right)\right]\)
Bài 8: Thực hiện phép tính
1) -\(\left(-\frac{3}{5} + \frac{3}{4}\right) - \left(-\frac{3}{4} + \frac{2}{5}\right)\)
2) \(\frac{13}{23} - \frac{-15}{4} + \left(\frac{10}{23} - \frac{1}{4}\right)\)
3) \(-\frac{25}{27} + \frac{31}{42} - \left(-\frac{7}{27} - \frac{3}{42}\right)\)
4) \(8 - \frac{2}{9} - \frac{5}{12}\)
5) \(11 - \frac{3}{13} \left(\frac{2}{4} + \frac{5}{3}\right)\)
6) \(\left(6 \frac{5}{7} + 2 \frac{7}{9}\right) - 4 \frac{5}{7}\)
Bài 9: Thực hiện phép tính
1) \(\frac{1}{6} \left[\frac{1}{6} - \left(-\frac{7}{4} + \frac{9}{12}\right)\right]\)
2) \(\frac{2}{3} - \left(-\frac{7}{4} + \frac{1}{2} - \frac{3}{8}\right)\)
3) \(-\frac{1}{24} \left[-\frac{1}{4} - \left(-\frac{1}{2} + \frac{7}{8}\right)\right]\)