1-1/6-1/3 5/7+1/24+2/7 15/16-(3/4-1/16)(全部简便计算)

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1-1/6-1/3 5/7+1/24+2/7 15/16-(3/4-1/16)(全部简便计算)

1-1/6-1/3 5/7+1/24+2/7 15/16-(3/4-1/16)(全部简便计算)
1-1/6-1/3 5/7+1/24+2/7 15/16-(3/4-1/16)(全部简便计算)

1-1/6-1/3 5/7+1/24+2/7 15/16-(3/4-1/16)(全部简便计算)
1-1/6-1/3
=1-(1/6+2/6)
=1-1/2
=1/2
5/7+1/24+2/7
=5/7+2/7+1/24
=1+1/24
=25/24
15/16-(3/4-1/16)
=15/16-3/4+1/16
=15/16+1/16-3/4
=1-3/4
=1/4

1-1/6-1/3
=1-(1/2-1/3)-1/3
=1-1/2+1/3-1/3
=1/2
5/7+1/24+2/7
=(5/7+2/7) +1/24
=1+1/24
=1又1/24
15/16-(3/4-1/16)
=15/16+1/16-3/4
=1-3/4
=1/4

第一个1-1/6-1/3=6/6-1/6-2/6=1/2
5/7+1/24+2/7=5/7+2/7+1/24=1+1/24=25/24
15/16-[3/4-1/16]=15/16-3/4+1/16=15/16+1/16-3/4=1-3/4=1/4