
9分之4÷[5分之4一(5分之1十3分之1)]。怎样计算简便就怎样算。
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9分之4÷[5分之4一(5分之1十3分之1)]
=(4/9)÷[(4/5)-(1/5)-(1/3)]
=(4/9)÷[(3/5)-(1/3)]
=(4/9)÷[(9/15)-(5/15)]
=(4/9)÷(4/15)
=(4/9)×(15/4)
=15/9
=5/3
=1又2/3
=(4/9)÷[(4/5)-(1/5)-(1/3)]
=(4/9)÷[(3/5)-(1/3)]
=(4/9)÷[(9/15)-(5/15)]
=(4/9)÷(4/15)
=(4/9)×(15/4)
=15/9
=5/3
=1又2/3
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