Question

a, 5/6 - 5/8 + 7/12          b, 12/24 + 6/8 - 2/3

Answer 1

a, 19/24

b, 7/12

Answer 2

mình cần lời giải nhé

Answer 3

19\24
7\12 đó]

Answer 4

a, \(\dfrac{5}{6}\) - \(\dfrac{5}{8}\) + \(\dfrac{7}{12}\)

MSC= 48

\(\dfrac{5}{6}=\) \(\dfrac{40}{48}\)

\(\dfrac{5}{8}=\dfrac{30}{48}\)

\(\dfrac{7}{12}=\dfrac{28}{48}\)

 (\(\dfrac{5}{6}\) - \(\dfrac{5}{8}\)) + \(\dfrac{7}{12}\)= \(\left(\dfrac{40}{48}-\dfrac{30}{48}\right)+\dfrac{28}{48}\)= \(\dfrac{10}{48}+\dfrac{28}{48}\)=\(\dfrac{38}{48}\)Câu b tương tự  

Answer 5

Em xin tham khao

A, 5/6 - 5/8 + 7/12 = 5 x 4/6x4 - 5x3/8x3 + 7 x 2 / 12 x 2 = 20/24 / - 15/24 + 14/24 = 19/24

b, 12/24 + 6/18 - 2/3 = 4/8 + 1/3 = 1/2 + 1/3 - 2/3 = 3/6 + 2/6 - 2/3 = 5/6 - 2/3 = 1/6