a,{3849-2.[146-(2.14+6:2)]}.32
b,134-2.{156-6[54-2.(9+6)]}
c,\(\frac{5}{7}\).\(\frac{12}{11}\)+\(\frac{5}{7}\).\(\frac{17}{11}\)-\(\frac{5}{7}\).\(\frac{18}{11}\)+2\(\frac{1}{3}\)
d,\(\frac{2}{3}\)+\(\frac{3}{5}\)+\(\frac{5}{3}\)-\(\frac{1}{5}\)+1
e,\(\frac{1}{6}\)+\(\frac{1}{12}\)+\(\frac{1}{20}\)+\(\frac{1}{30}\)+\(\frac{1}{42}\)+\(\frac{1}{56}\)+\(\frac{1}{72}\)(Lưu ý chỉ phân số \(\frac{1}{72}\)mới có thể quy đồng)