= 16/28 + 7/28 : 2/3 = 23/28 x 3/2 = 69/56
=\(\dfrac{4}{7}\)+\(\dfrac{3}{8}\)
=\(\dfrac{32}{56}\)+\(\dfrac{21}{56}\)
=\(\dfrac{53}{56}\)
4/7 + 1/4 : 2/3 = 4/7 + 1/4 x 3/2
= 4/7 + 3/8
= 32/56 + 21/56
= 53/56
Hok tốt!
\(\dfrac{4}{7}+\dfrac{1}{4}:\dfrac{2}{3}\)
\(=\dfrac{4}{7}+\dfrac{1}{4}x\dfrac{3}{2}\)
\(=\dfrac{4}{7}+\dfrac{3}{8}\)
\(=\dfrac{32}{56}+\dfrac{21}{56}\)
\(=\dfrac{53}{56}\)