Question

Tính bằng cách thuận tiện nhất:  5/14x7/13x26/25=

Answer 1

Ta có: \(\frac{5}{14}\times\frac{7}{13}\times\frac{26}{25}=\frac{5\times7\times26}{14\times13\times15}=\frac{5\times7\times13\times2}{7\times2\times13\times3\times5}=\frac{1}{3}\)

Answer 2

   \(\frac{5}{14}x\frac{7}{13}x\frac{26}{25}\)

=\(\frac{5}{26}x\frac{26}{25}\)

=\(\frac{1}{5}\)