Đáp án `+` Giải thích các bước giải:

`h) 9/5 * 10/3`

`= (9*10)/(5*3)`

`= 6`

`\text{}`

`i) (-3)(-7/12)`

`= 3 * 7/12`

`= 7/4`

`\text{}`

`k) 5/-12 : 2/9`

`= (-5)/12 * 9/2`

`= (-15)/8`

`\text{}`

`l) 1/2 - 3/2 * 4/9`

`= 1/2 - 2/3`

`= -1/6`

`\text{}`

`m) 5/6 * (-3)/10 - 3/10`

`= (-5)/6 * 3/10 - 3/10`

`= 3/10((-5)/6 - 1)`

`= 3/10 * (-11)/6`

`= (-11)/20`

`\text{}`

`n) (-5)/12 : (-11)/8 - 3/4`

`= 5/12 * 8/11 - 3/4`

`= 40/132 - 3/4`

`= -59/132`

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