Question

[hunyg hjk]

X : 2/5 - 4/6 = 4

Answer 1

[Võ Ngọc Phương]

\(x:\dfrac{2}{5}-\dfrac{4}{6}=4\)

\(x:\dfrac{2}{5}=4+\dfrac{4}{6}=\dfrac{24}{6}+\dfrac{4}{6}\)

\(x:\dfrac{2}{5}=\dfrac{28}{6}\)

\(x=\dfrac{28}{6}.\dfrac{2}{5}\)

\(x=\dfrac{28}{15}\)

Answer 2

[Nguyễn thành Đạt]

\(x:\dfrac{2}{5}-\dfrac{4}{6}\text{=}4\)

\(x\times\dfrac{5}{2}\text{=}4+\dfrac{4}{6}\)

\(x\times\dfrac{5}{2}\text{=}\dfrac{14}{3}\)

\(x\text{=}\dfrac{14}{3}:\dfrac{5}{2}\)

\(x\text{=}\dfrac{28}{15}\)