Rút gọn biểu thức sau: \(\Large \dfrac{1}{3}\) \(\Large \dfrac{1}{2}\)

Rút gọn biểu thức sau: 

• A.

  \(\Large \dfrac{1}{3}\)

• B.

  \(\Large \dfrac{1}{2}\)

• C.

  1

• D.

  0

\(\Large \dfrac{2016 \times 2017 - 2015}{2015 \times 2016 + 2017} \)

\(\Large = \dfrac{2016 \times (2016 + 1) - 2015}{(2016 - 1) \times 2016 + 2017} \)

\(\Large = \dfrac{2016 \times 2016 + 2016 - 2015}{2016 \times 2016 - 2016 + 2017} \)

\(\Large = \dfrac{2016 \times 2016 + 1}{2016 \times 2016 + 1} \)

\(\Large = 1\)