Bài 1 Tính giá trị biểu thức
A =\(\frac{5}{12}\)+ \(\frac{3}{4}\)-1 \(\frac{16}{5}\)+ \(\frac{16}{7}\)-\(\frac{16}{9}\)
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3-\(\frac{5}{6}\)+ \(\frac{2}{3}\) \(\frac{17}{5}\) + \(\frac{17}{7}\)-\(\frac{17}{9}\)