\(\dfrac{3}{7}+\dfrac{-10}{21}-\dfrac{4}{3}\)
\(=\dfrac{3}{7}-\dfrac{10}{21}-\dfrac{4}{3}\)
\(=\dfrac{3.3}{7.3}-\dfrac{10}{21}-\dfrac{4.7}{3.7}\)
\(=\dfrac{9}{21}-\dfrac{10}{21}-\dfrac{28}{21}\)
\(=\dfrac{9-10-28}{21}\)
\(=-\dfrac{29}{21}\)
3/7 +-10/21 -4/3
= -1/21 - 4/3
= -29/21
`3/7+(-10/21)-4/3`
`=(9-10-28)/21`
`=-29/21`
\(\dfrac{3}{7}+\dfrac{-10}{21}-\dfrac{4}{3}\\ =\dfrac{3}{7}-\dfrac{10}{21}-\dfrac{4}{3}\\ =-\dfrac{1}{21}-\dfrac{4}{3}\\ =-\dfrac{29}{21}\)
