\(\frac{3}{2}\times\frac{4}{7}+\frac{3}{7}\times\frac{3}{2}\)
\(=\frac{3}{2}\times\left(\frac{4}{7}+\frac{3}{7}\right)\)
\(=\frac{3}{2}\times1\)
\(=\frac{3}{2}\)
#H
\(\frac{3}{2}\times\frac{4}{7}+\frac{3}{7}\times\frac{3}{2}\)\(=\frac{3}{2}\times\left(\frac{4}{7}+\frac{3}{7}\right)\)
\(=\frac{3}{2}\)
3/2 x 4/7 + 3/7 x 3/2
= 3/2 x ( 4/7 + 3/7 )
= 3/2 x 1
= 3/2
3/2 x ( 4/7+ 3/7 )=3/2 x 7/7 =21/14
21/14 chưa rút gọn kìa