
2个回答
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(-5/6)÷(-3又 1/6)÷[1/24×(-1 又1/4)]-0.25÷1/4
=5/6)÷ 19/6÷[1/24×(-5/4)]-0.25÷1/4
=5/6×6/19÷(-5/96)]-1
=5/19×(-96/5)-1
=-96/19-1
=-115/19
=5/6)÷ 19/6÷[1/24×(-5/4)]-0.25÷1/4
=5/6×6/19÷(-5/96)]-1
=5/19×(-96/5)-1
=-96/19-1
=-115/19
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