Thực hiện tính bằng cách thuận tiện: \(\dfrac{{1919}}{{2323}} \times \dfrac{{464646}}{{747474}} \times \dfrac{{37}}{{19}}\)

\(\,\,\dfrac{{1919}}{{2323}} \times \dfrac{{464646}}{{747474}} \times \dfrac{{37}}{{19}}\)

\(\begin{array}{l} = \dfrac{{19}}{{23}} \times \dfrac{{46}}{{74}} \times \dfrac{{37}}{{19}}\\ = \dfrac{{19 \times 46 \times 37}}{{23 \times 74 \times 19}}\\ = \dfrac{{19 \times 23 \times 2 \times 37}}{{23 \times 37 \times 2 \times 19}} = 1\end{array}\)