Question

tính chi tiết bài này ra giúp mình với ạ:
5/8-|-1/12|-3 1/4+|-5/6|

Answer 1

\(\dfrac{5}{8}-\left|-\dfrac{1}{12}\right|-3\\ =\dfrac{5}{8}+\dfrac{1}{12}-3\\ =\dfrac{15}{24}+\dfrac{2}{24}-\dfrac{72}{24}\\ =-\dfrac{55}{24}\)

~~~~~~~~~~~~~~~~~~~

\(\dfrac{1}{4}+\left|-\dfrac{5}{6}\right|\\ =\dfrac{1}{4}+\left(-\dfrac{5}{6}\right)\\ =\dfrac{6}{24}+\left(-\dfrac{20}{24}\right)\\ =-\dfrac{14}{24}\\ =-\dfrac{7}{12}\)

Answer 2

5/8 - |- 1/2| - 3 

=> 5/8 + 1/12 - 3

=> 15/24 + 2/24 - 72/24

=> 15/24 + ( 2/24 - 72/24)

=> 15/24 + 70/24

=> - 55/24

-------------------------------------------

1/4 + |- 5/6 

=> 1/4 + (- 5/6)

=> 6/24 + (- 20/24)

=> - 14/24 = - 7/12

Answer 3

= 5/8 - 1/12 - 13/4 + 5/6

= 13/24 - 13/4 + 5/6

= -65/24 + 5/6

= -15/8