Question

Answer 1

\(\dfrac{7}{8}:x=\dfrac{3}{4}\)

\(x=\dfrac{7}{8}:\dfrac{3}{4}\)

\(x=\dfrac{7}{8}.\dfrac{4}{3}\)

\(x=\dfrac{7}{6}\)

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\(x+\dfrac{5}{6}=\dfrac{7}{5}\)

\(x=\dfrac{7}{5}-\dfrac{5}{6}\)

\(x=\dfrac{42}{30}-\dfrac{25}{30}\)

\(x=\dfrac{17}{30}\)

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\(\dfrac{2}{5}.x=\dfrac{5}{4}\)

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

\(x=\dfrac{5}{4}.\dfrac{5}{2}\)

\(x=\dfrac{25}{8}\)

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\(\dfrac{7}{4}-x=\dfrac{5}{8}\)

\(x=\dfrac{7}{4}-\dfrac{5}{8}\)

\(x=\dfrac{14}{8}-\dfrac{5}{8}\)

\(x=\dfrac{9}{8}\)

Answer 2

Bài `2`

`7/8:x=3/4`

`x=7/8:3/4`

`x=7/6`

______________

`x+5/6=7/5`

`x=7/5-5/6`

`x=17/30`

____________

`2/5 xx x = 5/4`

`x = 5/4 :2/5`

`x=25/8`

______________

`7/4-x=5/8`

`x=7/4-5/8`

`x=9/8`