hãy tính:\(\frac{1}{3}\) +\(\frac{1}{4}\)-\(\frac{1}{13}\) x \(\frac{3}{4}\)-\(\frac{3}{16}\)+\(\frac{3}{64}\)-\(\frac{3}{256}\)
\(\frac{2}{3}\)+\(\frac{2}{7}\)-\(\frac{2}{13}\) 1-\(\frac{1}{4}\)+\(\frac{1}{16}\)-\(\frac{1}{64}\)
Tất cả cộng với \(\frac{5}{8}\)