Tính: \(\Large B = \dfrac{17}{13} : \dfrac{51}{26} : \dfrac{6}{14} \)

Tính:

\(\Large B = \dfrac{17}{13} : \dfrac{51}{26} : \dfrac{6}{14}  \)

(Viết đáp án dưới dạng x/y)

 

• A. 14/9

\(\Large B = \dfrac{17}{13} : \dfrac{51}{26} : \dfrac{6}{14}  \)

 \(\Large B = \dfrac{17}{13} \times \dfrac{26}{51} \times \dfrac{14}{6}  \)

 \(\Large B = \dfrac{17 \times 26 \times 14}{13 \times 51 \times 6} \)

 \(\Large B = \dfrac{17 \times 13 \times 2 \times 2 \times 7}{13 \times 17 \times 3 \times 2 \times 3} \)

\(\Large B = \dfrac{2 \times 7}{3 \times 3} \)

\(\Large B = \dfrac{14}{9} \)