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在等式17/12=1/( ) +1/( )+ 1/( ) +1/( )
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2016-10-15
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17/12
=1/12+16/12
=1/12+4/3
=1/12+1/3+1
=1/12+1/3+1/2+1/2
答案写1/( 12) +1/( 3)+ 1/(2) +1/(2 )
=1/12+16/12
=1/12+4/3
=1/12+1/3+1
=1/12+1/3+1/2+1/2
答案写1/( 12) +1/( 3)+ 1/(2) +1/(2 )
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