Question

Answer 1

a)

x = 3/5 + 2/7

x = 21/35 + 10/35

x = 31/35

b)

x = 4/7 x 7/9

x = 4/9

Answer 2

a) \(x-\dfrac{2}{7}=\dfrac{3}{5}\)

   \(x=\dfrac{3}{5}+\dfrac{2}{7}\)

   \(x=\dfrac{31}{35}\)

b) \(x\div\dfrac{7}{9}=\dfrac{4}{7}\)

   \(x=\dfrac{4}{7}\times\dfrac{7}{9}\)

   \(x=\dfrac{4}{9}\)