Question

2: 2/3 -1/7 Giúp em với ạ!

Answer 1

\(2:\dfrac{2}{3}-\dfrac{1}{7}=3-\dfrac{1}{7}=\dfrac{20}{7}\)

Answer 2

2 : \(\dfrac{2}{3}\) - \(\dfrac{1}{7}\) = 2 x \(\dfrac{2}{3}\) - \(\dfrac{1}{7}\) = 3 - \(\dfrac{1}{7}\)  = \(\dfrac{20}{7}\)

 

Answer 3

2 : 2/3 - 1/7

= 2 x 3/2

= 6/2

= 3 -1/7

= 20/7