Tính: \(\Large2\dfrac{3}{7}\times1\dfrac{3}{4}=...\) \(\Large\dfrac{15

Tính:

\(\Large2\dfrac{3}{7}\times1\dfrac{3}{4}=...\)

• A.

  \(\Large\dfrac{15}{4}\)

• B.

  \(\Large\dfrac{17}{4}\)

• C.

  \(\Large\dfrac{19}{4}\)

• D.

  \(\Large\dfrac{21}{4}\)

\(\Large2\dfrac{3}{7}\times1\dfrac{3}{4}=\dfrac{17}{7}\times\dfrac{7}{4}=\dfrac{17}{4}\)