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16分之15除(12分之5除8分之5加8分之3)
=(15/16)÷{(5/12)÷(5/8+3/8)}
=(15/16)÷{5/12}
=(3/4)x3
=9/4
=2又1/4
6又5分之3除2又2分之1加6又5分之3成5分之三
=(33/5)÷(5/2)+(33/5)x(3/5)
=(33/5)x(2/5)+(33/5)x(3/5)
=(33/5)[(2/5)+(3/5)]
=(33/5)
=6又5分之3
=(15/16)÷{(5/12)÷(5/8+3/8)}
=(15/16)÷{5/12}
=(3/4)x3
=9/4
=2又1/4
6又5分之3除2又2分之1加6又5分之3成5分之三
=(33/5)÷(5/2)+(33/5)x(3/5)
=(33/5)x(2/5)+(33/5)x(3/5)
=(33/5)[(2/5)+(3/5)]
=(33/5)
=6又5分之3
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