Question

Answer 1

\(a,\dfrac{7}{8}-x=\dfrac{9}{16}\\ x=\dfrac{7}{8}-\dfrac{9}{16}\\ x=\dfrac{14}{16}-\dfrac{9}{16}\\ x=\dfrac{5}{16}\\ b,\dfrac{2}{9}-x=\dfrac{1}{6}-\dfrac{1}{9}\\ \dfrac{2}{9}-x=\dfrac{3}{18} -\dfrac{2}{18}\\ \dfrac{2}{9}-x=\dfrac{1}{18}\\ x=\dfrac{2}{9}-\dfrac{1}{18}\\ x=\dfrac{4}{18}-\dfrac{1}{8}\\ x=\dfrac{3}{18}\\ x=\dfrac{1}{6}\)