[3又2/3*(-5/11)+(-0.4)/(-4/25)]*1又1/5/(0.125*8)
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[3又2/3*(-5/11)+(-0.4)/(-4/25)]*1又1/5/(0.125*8)
![[3又2/3*(-5/11)+(-0.4)/(-4/25)]*1又1/5/(0.125*8)](/uploads/image/z/18875219-59-9.jpg?t=%5B3%E5%8F%882%2F3%2A%28-5%2F11%29%2B%28-0.4%29%2F%28-4%2F25%29%5D%2A1%E5%8F%881%2F5%2F%280.125%2A8%29)
[3又2/3*(-5/11)+(-0.4)/(-4/25)]*1又1/5/(0.125*8)
=(-11/3x5/11+2/5x25/4)x6/5÷1
=(-5/3+5/2)x6/5
=-5/3x6/5+5/2x6/5
=-2+3
=1
=(-11/3x5/11+2/5x25/4)x6/5÷1
=(-5/3+5/2)x6/5
=-5/3x6/5+5/2x6/5
=-2+3
=1
找规律填空 1又1/4、3又2/9、5又3/16、7又5/25、9又8/36、11又13/49、( )
找规律 1又1/4,5又1/9,9又2/16,13又3/25,17又5/36,21又8/49,( )
-5又1/3+2又11/12-16又1/4-3又5/6
按规律填数2又1/4,3又1/9,5又2/16,7又3/25,11又5/36,13又8/49,17又13/64
2又4分之1,3又9分之1,5又16分之2,7又25分之3,11又36分之5,13又49分之8,17又64分之13,(
1 又1/2+3又1/4+5又1/8+7又1/16+9又1/32+11又1/64+13又1/128+15又1/256+1
(9又11分之8-3又14分之5-1又14分之9)×2又4分之3
(9又8/11-3又5/14-1又9/14)×2又4/3
0.75+(-2又3/4)+(+0.125)+(-12又5/7)+(-4又1/8)
1又1\2+2又1\4+3又1\8+4又1\16+5又1\32+6又1\64+7又1\128+8又1\256+9又1\5
1又1/2+2又1/6+3又1/12+4又1/20+5又1/30+6又1/42+7又1/56+8又1/72+9又1/90
1又1/2-2又5/6+3又1/12-4又19/20+5又1/30-6又41/42+7又1/56-8又71/72+9又1