Question

[Nguyễn Phương Linh]

Tính nhanh:

3/7 x 14/6 + 2/3 x 6/14

Answer 1

[Lê Minh Vũ]

\(\dfrac{3}{7}\times\dfrac{14}{6}+\dfrac{2}{3}\times\dfrac{6}{14}\)

\(=\dfrac{3}{7}\times\dfrac{2}{3}+\dfrac{14}{6}\times\dfrac{6}{14}\)

\(=\dfrac{6}{21}+1\)

\(=\dfrac{27}{21}\)

Answer 2

[Phạm Thu Phương]

3​×614​+32​×146​

=\dfrac{3}{7}\times\dfrac{2}{3}+\dfrac{14}{6}\times\dfrac{6}{14}

=\dfrac{6}{21}+1

=\dfrac{27}{21}