(-1/6)-1/4-(-1/3)这道题目怎么写?

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(-1/6)-1/4-(-1/3)这道题目怎么写?
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(-1/6)-1/4-(-1/3)这道题目怎么写?
(-1/6)-1/4-(-1/3)这道题目怎么写?

(-1/6)-1/4-(-1/3)这道题目怎么写?
(-1/6)-1/4-(-1/3)
=-1/6-1/4+1/3
=-4/24-6/24+8/24
=-2/24
=-1/12
去括号记住负负得正