Question

Answer 1

7/6

Answer 2

7/6

Answer 3

7/6

Answer 4

\(\dfrac{7\times12\times72}{8\times9\times4\times3\times6}\)

\(=\dfrac{7\times4\times3\times8\times9}{8\times9\times4\times3\times6}\)

\(=\dfrac{7}{6}\)

Answer 5

\(\dfrac{7\times12\times72}{8\times9\times4\times3\times6}=\dfrac{7\times12\times72}{72\times12\times6}=\dfrac{7}{6}\)

Answer 6

= \(\dfrac{7.3.4.8.9}{8.9.4.3.6}\)

= \(\dfrac{7}{6}\)

* . => nhân