Đáp án + Giải thích các bước giải:
1. `11/24 - 5/41 + 13/24 + 0,5 - 36/41`
`= 11/24 - 5/41 + 13/24 + 12/24 - 36/41`
`= (11/24 + 13/24 + 12/24) - ( 5/41 + 36/41)`
`= 3/2 - 1`
`= 1/2`
2. `-12 : (3/4 - 5/6) ^2`
`= -12 : (-1/12)^2`
`= -12 : 1/144`
`= -1728`
3. `7/23 . [(-8/6) - 45/18]`
`= 7/23 . (-23/6)`
`= -7/6`
4. `23 (1)/(4) . 7/5 - 13 (1)/(4) : 5/7`
`= 93/4 . 7/5 - 53/4 . 7/5`
`= (93/4 - 53/4) . 7/5`
`= 40/4 . 7/5`
`= 14`
5. `(1 + 2/3 - 1/4) . (0,8 - 3/4)^2`
`= 17/12 . (1/20)^2`
`= 17/4800`
6. `16 (2)/(7) : (-3/5) + 28 (2)/(7) : 3/5`
`= 114/7 : (-3/5) + 198/7 : 3/5`
`= (-114/7 + 198/7) : 3/5`
`= 12 : 3/5`
`= 20`