作业帮1______________1 5+________14+_____13+___2
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1______________1 5+________14+_____13+___2
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______________
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4+_____
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1______________1 5+________14+_____13+___2
=1/(5+1/(4+1/(3+1/2)))
=1/(5+1/(4+1/(7/2)))
=1/(5+1/(4+2/7))
=1/(5+1/(30/7))
=1/(5+7/30)
=1/(157/30)
=30/157
=1/(5+1/(4+1/(3+1/2)))
=1/(5+1/(4+1/(7/2)))
=1/(5+1/(4+2/7))
=1/(5+1/(30/7))
=1/(5+7/30)
=1/(157/30)
=30/157