Question

\(2-\dfrac{9}{-21}\)

Answer 1

\(2-\dfrac{9}{-21}=\dfrac{21}{21}+\dfrac{9}{21}=\dfrac{30}{21}\)

Answer 2

`2 - 9/(-21) = 2 - 3/(-7) = 2 + 3/7 = 14/7 + 3/7 = (14+3)/7 = 17/7`

Answer 3

17/7

Answer 4

\(2-\dfrac{9}{-21}=2-\dfrac{-9}{21}=2+\dfrac{9}{21}=2+\dfrac{3}{7}=\dfrac{14}{7}+\dfrac{3}{7}=\dfrac{17}{7}\)