Question

Tính (theo mẫu).

Mẫu: \(\dfrac{2\times3\times7}{5\times7\times3}=\dfrac{2}{5}\)

a) \(\dfrac{12\times11\times13}{13\times17\times11}\)                                   b) \(\dfrac{49\times16\times31}{16\times49\times37}\)

Answer 1

a) = \(\dfrac{12}{17}\)

b) = \(\dfrac{31}{37}\)