Question

[Lily :3]

Tính giá trị của biểu thức sau:
B=\(\left(-1\dfrac{1}{6}\right):\left(-3\dfrac{1}{3}+2\dfrac{1}{4}\right)-\left(-\dfrac{3}{8}\right):\left(8-6\dfrac{3}{8}\right)\)

Answer 1

[Vân Vui Vẻ]

B = \(\left(-1\dfrac{1}{6}\right)\) : \(\left(\dfrac{-10}{3}+\dfrac{9}{4}\right)\) - \(\left(-\dfrac{3}{8}\right)\) : \(\left(8-\dfrac{51}{8}\right)\)

B = \(\dfrac{-7}{6}\) : \(\dfrac{-13}{12}\) - \(\left(-\dfrac{3}{8}\right)\) : \(\dfrac{13}{8}\)

B = \(\dfrac{14}{13}\) - \(\dfrac{-3}{13}\)

B = \(\dfrac{17}{13}\)