Tính nhanh: \(\Large\dfrac{6\times7\times8\times9\times10}{20\times18\

Tính nhanh:

\(\Large\dfrac{6\times7\times8\times9\times10}{20\times18\times16\times14\times12}=...\)

• A.

  \(\Large\dfrac{1}{16}\)

• B.

  \(\Large\dfrac{1}{18}\)

• C.

  \(\Large\dfrac{1}{32}\)

• D.

  \(\Large\dfrac{1}{48}\)

\(\Large\dfrac{6\times7\times8\times9\times10}{20\times18\times16\times14\times12}=\dfrac{1}{2\times2\times2\times2\times2}=\dfrac{1}{32}\)