Đáp án:
Giải thích các bước giải:
`b)` `-5/8:1/4-3/16 . 4 +3/8`
`=-5/2-3/4+3/8`
`=-23/8`
`c)` `(3/8-1/4+5/12):1/3`
`=13/24:1/3=13/8`
`d)` `1/4 . 2/3 - 3/2 . 1/6 +1/12`
`=1/6-1/4+1/12`
`=0`
`e)` `2 1/3+2 5/7-1 1/3`
`=7/3+19/7-4/3`
`=26/7`
`f)` `(2 1/3 - 1/9):(-2 1/6+0,25)+1 11/69`
`=(7/3-1/9):(-13/6+1/4)+80/69`
`=20/9:(-23/12)+80/69`
`=-80/69+80/69=0`