=-︱3/2 -2/3 ︱ -︱2/5 - 1/5︱
=-5/6 -1/5
=-31/30本回答被提问者采纳
数学计算题:-︱-2\/3-(-3\/2)︱-︱(-1\/5)+(2\/5)︱=?
回答：-︱-2\/3-(-3\/2)︱-︱(-1\/5)+(2\/5)︱ =-︱3\/2 -2\/3 ︱ -︱2\/5 - 1\/5︱ =-5\/6 -1\/5 =-31\/30
-丨-2\/3-(+3\/2)丨-丨(-1\/5)+(-2\/5)丨
丨-2\/3-（+3\/2）丨=13\/6 丨（-1\/5）+（-2\/5）丨=3\/5 ∴原式=-13\/6-3\/5=-83\/30
数学计算题;(-6)-(+6)-(-7)=? -︱-2\/3-(-3\/2)︱-︱(-1\/...
回答：(-6)-(+6)-(-7) =-12-(-7) =-5 -|-2\/3-(+2\/3)|-|(-1\/5)+(-2\/5)| =-|-2\/3-2\/3|-|-1\/5-2\/5| =-|-4\/3|-|-3\/5| =-4\/3-3\/5 =-11\/15
数学计算题;(-6)-(+6)-(-7)=? -︱-2\/3-(-3\/2)︱-︱(-1\/5)+(2\/5)︱=?
=-|-2\/3-2\/3|-|-1\/5-2\/5| =-|-4\/3|-|-3\/5| =-4\/3-3\/5 =-11\/15
1-2\/(-2\/3)-(-4\/5)+(-1\/2)=?
1\/2+(-2\/3)-(-4\/5)+(-1\/2)=1\/2 - 2\/3 + 4\/5 - 1\/2 =1\/2 - 1\/2 - 2\/3 + 4\/5 = 4\/5 - 2\/3 =( 12- 10) \/15 = 2\/15
(-2\/3)-2\/5怎么算过程详写
解：依题意得算式，（-3分之2）-5分之2 =-（3分之2+5分之2）=-（15分之10+15分之6）=-15分之16 即（-3分之2）-5分之2=-15分之16
-丨-2\/3丨-丨-1\/2×2\/3丨-丨1\/3-1\/4丨-丨-3丨(在线等!急急急·!!!)
-丨-2\/3丨-丨-1\/2×2\/3丨-丨1\/3-1\/4丨-丨-3丨 =-2\/3-1\/3-1\/12-3 =-1-3-1\/12 =-4又1\/12
请计算-2\/3-3\/5+5-1\/3-2\/5+4过程
=（-2\/3-1\/3）+（-3\/5-2\/5）+（5+4）=-1-1+9 =-2+9 =7
计算(-2\/3)-(+1\/2)-(-5\/6)-(+1\/3)-(+1又1\/2)
解：原式=（-2\/3)-(+1\/2)-(-5\/6)-(+1\/3）-（+1又1\/2)=[（-2\/3)-(+1\/3)]-[(+1\/2)-(1又1\/2)]-(-5\/6)=-1-1+5\/6 =2又5\/6
