①(-12/7+1/4-5/6)×(-24) ②5/12×(-1又1/2)×(-8/15)×2/3 ③4/5×(-5/13)-
①(-12/7+1/4-5/6)×(-24)②5/12×(-1又1/2)×(-8/15)×2/3③4/5×(-5/13)-3/5×(-5/13)-1/5×(-5/13)...
①(-12/7+1/4-5/6)×(-24)
②5/12×(-1又1/2)×(-8/15)×2/3
③4/5×(-5/13)-3/5×(-5/13)-1/5×(-5/13) 展开
②5/12×(-1又1/2)×(-8/15)×2/3
③4/5×(-5/13)-3/5×(-5/13)-1/5×(-5/13) 展开
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