3/4+1/3-5/6= 3/8+1/2-1/4= 1/6-1/9+7/12= 1-2/5-2/7= 3/4+(4/5-1/4)= 3/5-(1/10+3/8)= 2/3-(5/6-5/8)= 2/3-4/7+5/6=
用简便的方法做
7/9+5/7+5/9= 12/25-1/8-1/24= 1-2/5-7/20=
5/8+4/7+9/8-14/1= 5/9-(1/3+1/8)=
从4/5里减去1/5与2/7的和,差是多少?
2/5加上7/10,再减去11/20,得多少?
5/6加上5/8与1/4的差,和是多少?
(数学)3\/4+1\/3-5\/6= 3\/8+1\/2-1\/4= 1\/6-1\/9+7\/12= 1-2\/5-2\/7= 3\/4+...
3\/4+1\/3-5\/6=1\/4 3\/8+1\/2-1\/4= 5\/8 1\/6-1\/9+7\/12=23\/36 1-2\/5-2\/7=11\/35 3\/4+(4\/5-1\/4)= 13\/10 3\/5-(1\/10+3\/8)=1\/8 2\/3-(5\/6-5\/8)= 11\/24 2\/3-4\/7+5\/6=13\/14 用简便的...
...得数1\/7+2\/3= 1\/2+1\/3= 3\/4-3\/8= 1-7\/9= 2-1\/6= 2\/5+3\/5= 5\/6...
1\/2+1\/3=5\/6 3\/4-3\/8=3\/8 1-7\/9=2\/9 2-1\/6=11\/6 2\/5+3\/5=1 5\/6-2\/3=1\/6 4\/5+1\/6-4\/5=1\/6 7\/8-5\/12+5\/6 =7\/8+5\/12 =31\/24 4\/5-(1\/6+1\/12)=4\/5-1\/4 =11\/20 2\/5+(3\/4+3\/5+1\/4)=2\/5+8\/5 =2 4-8\/13-5\/13 =4-1 =3 4\/5...
...5\/7+1\/4—9\/4= 3\/4+3\/6-5\/8 = 5\/9+(3\/4-1\/2)= 1\/10+3\/8-1\/2=...
5\/7+1\/4—9\/4 =5\/7-8\/4 =5\/7-2 =5\/7-14\/7 =-9\/7 3\/4+3\/6-5\/8 =18\/24+12\/24-15\/24 =15\/24 5\/9+(3\/4-1\/2)=5\/9+3\/4-2\/4 =5\/9+1\/4 =20\/36+9\/36 =29\/36 1\/10+3\/8-1\/2= =1\/10+3\/8-4\/8 =1\/10-1\/8 =4\/40-5\/40 =-1\/40 3\/5-(2...
3\/4+3\/5-1\/2简便计算 1-(3\/4-3\/10)简便计算?
解题过程:3\/4+3\/5-1\/2 =3\/4-2\/4+3\/5 =1\/4+3\/5 =5\/20+12\/20 =17\/20 存疑请追问,满意请采纳
数学题 1\/3+1\/6=1\/2 1\/4+1\/12=1\/3 1\/5+1\/20=1\/4 …… 1\/x+
回答:第四排是: 1\/6+1\/30=1\/5 ... 1\/81-1\/80 =-1\/6480
...12=(1\/2+1\/3)-(1\/4+1\/3)=1\/2+1\/3-1\/4-1\/3=1\/2-1\/4?
5\/6-7\/12=(1\/2+1\/3)-(1\/4+1\/3)=1\/2+1\/3-1\/4-1\/3=1\/2-1\/4= =(18+1\/9)+(- 1\/36+(-1\/9))-(1\/22-(-1\/12))+(1\/11+1\/12)=1\/4,9,=(18+1\/9)+(- 1\/36+(-1\/9))-(1\/22-(-1\/12))+(1\/11+1\/12)=1\/4,0,= 41,0,五年级找规律填数 5\/6-7\/...
3\/4+7\/4分数表示等于几,1\/2+1\/3分数表示等于几3\/4-3\/8分数表示等于几...
3\/4+7\/4分数表示等于5\/2,1\/2+1\/3分数表示等于5\/6,3\/4-3\/8分数表示等于3\/8,因为,72÷9=8,所以72是8和9的倍数,8和9是72的因数。
3\/4+1\/6-2\/3脱式计算?
先分母通分,然后分子相加减。具体过程如图所示,请忽略字体难看
3\/5+(3\/4-1\/6) 计算?
3\/5+(3\/4-1\/6)=3\/5+3\/4-1\/6 =36\/60+45\/60-10\/60 =71\/60 这里可以通过计算得的答案是71\/60。
.直接写出得数 (5分)1\/5+1\/6= 1\/3-1\/4= 1-3\/8= 5\/6-1\/2= 5\/8?
1\/5+1\/6= 30分之11 ,1\/3-1\/4= 12分之1,1-3\/8=8分之5,5\/6-1\/2=6分之2,5\/8=0.625.