Question

Giúp mình bài 6.24

Answer 1

\(A=\left[\left(-\dfrac{3}{11}\right)+\left(-\dfrac{8}{11}\right)\right]+\left(\dfrac{11}{8}-\dfrac{3}{8}\right)\\ A=-1+1=0\)

Answer 2

Nhóm các phân số có cùng mẫu số ta có kết quả là 1 + 1 = 2

Answer 3

Tham Khảo

Answer 4

\(A=\left(-\dfrac{3}{11}\right)+\dfrac{11}{8}-\dfrac{3}{8}+\left(-\dfrac{8}{11}\right)\)

\(A=\left(-\dfrac{3}{11}-\dfrac{8}{11}\right)+\left(\dfrac{11}{8}-\dfrac{3}{8}\right)\)

\(A=\dfrac{-11}{11}+\dfrac{8}{8}\)

\(A=-1+1\)

\(A=0\)

Answer 5

lèm lun nha bẹn:D

=\(\left[\left(\dfrac{-3}{11}\right)+\left(\dfrac{-8}{11}\right)\right]+\left(\dfrac{11}{8}-\dfrac{3}{8}\right)\)

\(=\left(\dfrac{-3}{11}+\dfrac{-8}{11}\right)+\left(\dfrac{11}{8}-\dfrac{3}{8}\right)\)

\(=\dfrac{\left(-3\right)+\left(-8\right)}{11}+\dfrac{11-3}{8}\)

\(=\dfrac{-11}{11}+\dfrac{8}{8}\)

\(=-1+1=0\)

Answer 6