5\/6-1\/4+1\/3求简便运算。
=5\/6-3\/12+4\/12 =10\/12+1\/12 =11\/12
5\/6-(1\/5+1\/3)简便方法?
5\/6-(1\/5+1\/3)=5\/6-(3\/15+5\/15)=5\/6-8\/15 =25\/30-16\/30 =9\/30 =3\/10 过程如上
3\/10+1\/10+3\/5如何简便运算
分母换算成一样的再相加分式中写在分数线下面的数或代数式叫分母。分母是已知数的分数叫整式,分母是未知数的分数叫分式。分母应该不能为零。同分母分数相加减,分母不变,即分数单位不变,分子相加减,能约分的要约分。
用简便方法计算5\/6-1\/2+1\/3
5\/6-1\/3+2\/3简便演算法脱试计算5\/6-1\/3+2\/3 =5\/6+2\/3-1\/3 =5\/6+(2\/3-1\/3)=5\/6+1\/3 =7\/6 =1又1\/6 1\/2+1\/3+2\/5用简便方法计算1\/2+1\/3+2\/5 =15\/30+10\/30+12\/30 =37\/30 =1又7\/30 5\/6÷(1\/3+1\/18)用简便方法计算5\/6÷(1\/3+1\/18)=5\/6...
5\/9-1\/2+5\/6能用简便用简便不能用简便咋做这题?
分数计算5\/9-1\/2+5\/6 解题思路:需要先进行通分(最小公倍数),通分转换为公分母后将所有分子相加减后得出计算出来的分数,之后再化简为最简分数即可。解题过程:5\/9-1\/2+5\/6 =10\/18-9\/18+15\/18 =(10-9+15)\/18 =8\/9 存疑请追问,满意请采纳 ...
...之1+3×4×5分之1+...+13×14×15分之1 简便计算
解:(4)原式=1\/3(1-1\/4)+1\/3(1\/4-1\/7)+1\/3(1\/7-1\/10)+1\/3(1\/10-1\/13)+1\/3(1\/13-1\/16)=1\/3(1-1\/4+1\/4-1\/7+1\/7-1\/10+1\/10-1\/13+1\/13-1\/16)=1\/3(1-1\/16)=1\/3*15\/16 =5\/16 ...
5\/6-1\/4+1\/3求简便运算。
交换律把5\/6与1\/3通分相加后,再通分减去1\/4,即原式=5\/6+1\/3-1\/4=5\/6+2\/6-1\/4=7\/6-1\/4=14\/12-3\/12=11\/12。
5\/6-1\/2+1\/3等于多少
解:5\/6-1\/2+1\/3等于( 2\/3 )∵已知需求出5\/6-1\/2+1\/3等于多少 ∴5\/6 - 1\/2 + 1\/3 = 5\/6 - (1×3)\/(2×3)+ (1×2)\/(3×2)= 5\/6 - 3\/6 + 2\/6 = 2\/6 + 2\/6 = 4\/6 = 2\/3 答:5\/6-1\/2+1\/3等于2\/3 ...
5\/6-(1\/3+ 3\/10)简算?
简便计算过程方法如下 解:5\/6-(1\/3+ 3\/10)=5\/6-(10\/30+9\/30)=25\/30-19\/30 =1\/5
1-1\/10-1\/5用简便算法怎么做?
你好,这道题的简便运算如下:先通分,最小公倍数是10,变华为10\/10-1\/10-2\/10 =(10-1-2)\/10 =7\/10 =0.7。