Question

a)−4/3 −7/6+1/2 =?

 

Answer 1

\(=-\dfrac{5}{2}+\dfrac{1}{2}=-\dfrac{4}{2}=-2\)

Answer 2

=1/3

Answer 3

-2

Answer 4

-2

Answer 5

Lấy mẫu số chung là 6. Quy đồng ra được:

\(-\dfrac{8}{6}\) - \(\dfrac{7}{6}\) + \(\dfrac{3}{6}\) 

= \(\dfrac{-8-7+3}{6}\)

= \(\dfrac{-12}{6}\)

= -2

Answer 6

-2

Answer 7

-4/3 - 7/6 + 1/2

=-8/6 - 7/6 + 3/6

=-15/6 +3/6

= -12/6

=2

Answer 8

= -2 nha vừa nãy viết nhầm

Answer 9

-4/3 - 7/6 + 1/2

=-8/6 - 7/6 + 3/6

=-15/6 +3/6

=-12/6=-2

Answer 10

\(\dfrac{-4}{3}-\dfrac{-7}{6}+\dfrac{1}{2}\)

\(=\dfrac{-4}{3}+\dfrac{7}{6}+\dfrac{1}{2}\)

\(=\dfrac{-8}{6}+\dfrac{7}{6}+\dfrac{3}{6}\)

\(=\dfrac{-8+7+3}{6}\)

\(=\dfrac{2}{6}=\dfrac{1}{3}\)