Question

15/23 . ( x - 3/8 ) = 25/ 46

Answer 1

   \(\dfrac{15}{23}.\left(x-\dfrac{3}{8}\right)=\dfrac{25}{46}\)
           \(x-\dfrac{3}{8}=\dfrac{25}{46}:\dfrac{15}{23}\)
           \(x-\dfrac{3}{8}=\dfrac{25}{46}.\dfrac{23}{15}\)
           \(x-\dfrac{3}{8}=\dfrac{5}{2}.\dfrac{1}{3}\)
           \(x-\dfrac{3}{8}=\dfrac{5}{6}\)
           \(x\)         \(=\) \(\dfrac{5}{6}+\dfrac{3}{8}\)
           \(x\)         \(=\dfrac{20}{24}+\dfrac{9}{24}\)
           \(x\)         \(=\dfrac{29}{24}\)
 Vậy \(x=\dfrac{29}{24}\)