\(\frac{1234\:×\:567\:-667}{567+1234\:×566}\)

\(\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{1}{1+x}}}}}}}}}}\)=\(\frac{381978}{382007}\)

Tìm x biết:

\(\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{3}{8+\frac{1}{1+x}}}}}}}}}=\frac{381978}{382007}\)

cho A=40+\(\frac{8}{3}+\frac{7}{8^2}\frac{5}{8^3}\frac{32}{8^5}vàB=\frac{24}{8^2}+40+\frac{5}{8^2}+\frac{40}{8^2}\frac{5}{8^4}.\)

\(\frac{\frac{5}{12}+\frac{1}{8}-\frac{7}{11}}{\frac{49}{11}-\frac{7}{8}-\frac{35}{12}}\) 

\(\frac{5-\frac{5}{3}-\frac{5}{9}-\frac{5}{27}}{-8+\frac{8}{3}+\frac{8}{9}+\frac{8}{27}}:\frac{15-\frac{15}{11}-\frac{15}{121}}{16-\frac{16}{11}-\frac{16}{121}}\)

So sánh

\(A=40+\frac{3}{8}+\frac{7}{8^2}+\frac{5}{8^3}+\frac{32}{8^5}\)

\(B=\frac{24}{8^2}+40+\frac{5}{8^2}+\frac{40}{8^4}+\frac{5}{8^4}\)

\(\frac{5-\frac{5}{3}+\frac{5}{9}-\frac{5}{27}}{8-\frac{8}{3}+\frac{8}{9}-\frac{8}{27}}:\frac{15-\frac{15}{11}+\frac{15}{121}}{16-\frac{16}{11}+\frac{16}{121}}\)

1/tính nhanh

a/\(A=\frac{7}{8}:\left(\frac{2}{9}-\frac{1}{18}\right)+\frac{7}{8}:\left(\frac{1}{36}-\frac{5}{12}\right)\)

b/\(B=\frac{1+0,6-\frac{3}{7}}{\frac{8}{3}+\frac{8}{5}-\frac{8}{7}}-\frac{\frac{1}{3}+0,25-\frac{1}{5}+0,125}{\frac{7}{6}+\frac{7}{8}-0,7+\frac{7}{16}}\)

\(\frac{8-\frac{8}{7}-\frac{8}{261}+\frac{8}{85}}{-4+\frac{4}{7}+\frac{8}{261}+\frac{8}{85}}+\frac{\left(-75\right).\left(-135\right)+75.\left(-28\right)+107.\left(-75\right)}{1+3+5+...............................2013+2015}\)