45又15/16÷5 8/17÷23+1/23×9/17 5÷（5/11+5/9） 简便方法
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45又15/16÷5
=(45+15/16)÷5
=45÷5+15/16÷5
=9+15/16x1/5
=9+3/16
=9又3/16
8/17÷23+1/23×9/17
=8/17x1/23+1/23x9/17
=(8/17+7/17)x1/23
=1x1/23
=1/23
5÷（5/11+5/9)
=5÷(45/99+55/99)
=5÷100/99
=5x99/100
=99/20
=4又19/20
=(45+15/16)÷5
=45÷5+15/16÷5
=9+15/16x1/5
=9+3/16
=9又3/16
8/17÷23+1/23×9/17
=8/17x1/23+1/23x9/17
=(8/17+7/17)x1/23
=1x1/23
=1/23
5÷（5/11+5/9)
=5÷(45/99+55/99)
=5÷100/99
=5x99/100
=99/20
=4又19/20
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