=51+41+31+2/5+1/4+1/3
=41*3+(2*12+15+20)/60
=123+59/60
=123又60分之59
51+2\/3*3\/5+41+1\/3*3\/4+31+1\/2*2\/3简便运算怎么算
51+2\/3*3\/5+41+1\/3*3\/4+31+1\/2*2\/3 =51+41+31+2\/5+1\/4+1\/3 =41*3+(2*12+15+20)\/60 =123+59\/60 =123又60分之59
51 2\/3*3\/5+41 1\/3*3\/4+31 1\/2*2\/3
51又2\/3*3\/5+41又1\/3*3\/4+31又1\/2*2\/3 =(51+2\/3)*3\/5+(41+1\/3)*3\/4+(31+1\/2)*2\/3 =(153\/3+2\/3)*3\/5+(123\/3+1\/3)*3\/4+(62\/2+1\/2)*2\/3 =155\/3*3\/5+124\/3*3\/4+63\/2*2\/3 =31+31+21 =83 如果觉得有用记得好评哦，祝你学习进步~
51又2\/3*3\/5+71又3\/4*4\/7+91又4\/5除以9\/5简便做法
(51+2\/3)÷(5\/3)+(71+3\/4)÷(7\/4)+(91+4\/5)÷(9\/5)=(50+5\/3)*(3\/5)+(70+7\/4)*(4\/7)+(90+9\/5)*(5\/9)=50*3\/5+（5\/3)(3\/5)+70*4\/7+(7\/4)*(4\/7)+90*5\/9+(9\/5)*(5\/9)=30+1+40+1+50+1 =123 ...
数学作业(简便计算)
解：1。原式=(50+2\/3+1)x3\/5+(40+1\/3+1)x3\/4+(30+1\/2+1)x2\/3 =30+2\/5+3\/5+30+1\/4+3\/4+20+1\/3+2\/3 =30+1+30+1+20+1 =83.2。原式=8\/17x2\/23+9\/17x2\/23 =(8\/17+9\/17)x2\/23 =1x2\/23 =2\/23....
51又1\/4*4\/5+41又1\/3*3\/4+31又1\/2*2\/3 2013*2011\/2012+1\/2012简算
简算 51又1\/4*4\/5+41又1\/3*3\/4+31又1\/2*2\/3 解，得：==205\/4*4\/5+124\/3*3\/4+63\/2*2\/3 ==41+31+21 ==72+21 ==93 2013*2011\/2012+1\/2012 解，得：==(2012+1)*2011\/2012+1\/2012 ==(2012*2011+2011+1)\/2012 ==(2012*2011+2012)\/2012 ==[2012*(2011+1)]\/...
51又3分之2×5分之3+41又3分之1×4分之3+31又2分之1×3分之2 怎么算...
你看一下，方法一样的。71又6分之1乘7分之6+61又5分之1乘6分之5+51又4分之1乘5分之4+41又3分之1乘4分之3 =(71×6+1)×1\/7+(61×5+1)×1\/6+(51×4+1)×1\/5+(41×3+1)×1\/4 =427×1\/7+306×1\/6+205×1\/5+124×1\/4 =61+51+41+31 =184 ...
求两道简算题 41 1\/3 * 3\/4 + 51 1\/4 * 4\/5+ 61 1\/5*5\/6 511 * 37373...
41 1\/3 * 3\/4 + 51 1\/4 * 4\/5+ 61 1\/5*5\/6 =(40+1 1\/3)×3\/4+(50+1 1\/4)×4\/5+(60+1 1\/5)×5\/6 =30+1+40+1+50+1=123 511×373737\/737373 =7×73×373737\/737373 =7×73×37×101010\/(73×101010) =7×37 =7×(30+7) =259 已赞过 已踩过< 你对这个回答的...
51呦之2\/3×2\/5简算
解如图。
51又3分之二乘5分之3加41又3分之一乘4分之3加31又2分之一乘3分二
原式= 155\/3x3\/5+124\/3x3\/4+63\/2x2\/3 =31+31+21 =83
31又1\/2*2\/3+41又1\/3*3\/4+51又1\/4*4\/5+61又1\/5*5\/6+71又1\/6*6\/7...
31又1\/2*2\/3+41又1\/3*3\/4+51又1\/4*4\/5+61又1\/5*5\/6+71又1\/6*6\/7 =(30 + 3\/2)*2\/3+(40+4\/3)*3\/4+(50+ 5\/4)*4\/5+(60+6\/5)*5\/6+(70+7\/6)*6\/7 =20+1+30+1+40+1+50+1+60+1 =20+30+50+40+60+5 =205 ...
