Question

\(xx\dfrac{2}{7}x\dfrac{3}{4}=\dfrac{5}{21}\)

Answer 1

\(x\times\dfrac{2}{7}\times\dfrac{3}{4}=\dfrac{5}{21}\)

\(x\times\dfrac{6}{28}=\dfrac{5}{21}\)

\(x=\dfrac{5}{21}:\dfrac{6}{28}\)

\(x=\dfrac{10}{9}\)

Answer 2

rõ ra dc ko?

Answer 3

? Đề tùm lum :)

Answer 4

\(Xx\dfrac{2}{7}=\dfrac{5}{21}:\dfrac{3}{4}=\dfrac{20}{63}\)

X=\(\dfrac{20}{63}:\dfrac{2}{3}=\dfrac{10}{9}\)

Answer 5

Answer 6