Question

2 phần 5 chia cho x bằng 5 phần 7

giải như thế nào các bn ơi!!!

ai comment, mik kb lun

Answer 1

\(\dfrac{2}{5}:x=\dfrac{5}{7}\\ x=\dfrac{2}{5}:\dfrac{5}{7}\\ x=\dfrac{14}{25}\)

Answer 2

\(\dfrac{2}{5}:x=\dfrac{5}{7}\\ x=\dfrac{2}{5}:\dfrac{5}{7}=\dfrac{14}{25}\)

Answer 3

\(\dfrac{2}{5}:x=\dfrac{5}{7}\)

\(x=\dfrac{2}{5}:\dfrac{5}{7}\)

\(x=\dfrac{2}{5}x\dfrac{7}{5}\)

\(x=\dfrac{14}{25}\)

Answer 4

2/5:x=5/7

=>x=2/5:5/7

=>x=14/25

vậy x=14/25

Answer 5

\(\dfrac{2}{5}:x=\dfrac{5}{7}\)

\(x=\dfrac{14}{25}\)

Answer 6