计算下面各题,能简便计算的用简便方法计算 2-6/13÷9/26 (1/3+1/4)×36 6/7×(4/5-2/3)÷
来源:学生作业帮 编辑:搜狗做题网作业帮 分类:数学作业 时间:2024/06/23 18:54:11
计算下面各题,能简便计算的用简便方法计算 2-6/13÷9/26 (1/3+1/4)×36 6/7×(4/5-2/3)÷1/5
3/4-3/4×4/7+9/7
3/4-3/4×4/7+9/7
![计算下面各题,能简便计算的用简便方法计算 2-6/13÷9/26 (1/3+1/4)×36 6/7×(4/5-2/3)÷](/uploads/image/z/4995515-11-5.jpg?t=%E8%AE%A1%E7%AE%97%E4%B8%8B%E9%9D%A2%E5%90%84%E9%A2%98%2C%E8%83%BD%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E7%9A%84%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97+2-6%2F13%C3%B79%2F26+%281%2F3%2B1%2F4%29%C3%9736+6%2F7%C3%97%284%2F5-2%2F3%29%C3%B7)
2-6/13÷9/26
= 2- (6/13)×(26/9)
=2- 4/3
=2/3
.
(1/3+1/4)×36
=(1/3)×36 +(1/4)×36
=12+9
=21
.
6/7×(4/5-2/3)÷1/5
=(6/7)×(4/5 - 2/3)×5
=(6/7)×(4 - 10/3)
=(6/7)×(2/3)
=4/7
.
3/4-3/4×4/7+9/7
=(3/4)×(1- 4/7)+9/7
=(3/4)×(3/7)+9/7
=(1/4)×(9/7)+ 9/7
=(1/4 +1)×(9/7)
=(5/4)×(9/7)
=45/28
=1又17/28
= 2- (6/13)×(26/9)
=2- 4/3
=2/3
.
(1/3+1/4)×36
=(1/3)×36 +(1/4)×36
=12+9
=21
.
6/7×(4/5-2/3)÷1/5
=(6/7)×(4/5 - 2/3)×5
=(6/7)×(4 - 10/3)
=(6/7)×(2/3)
=4/7
.
3/4-3/4×4/7+9/7
=(3/4)×(1- 4/7)+9/7
=(3/4)×(3/7)+9/7
=(1/4)×(9/7)+ 9/7
=(1/4 +1)×(9/7)
=(5/4)×(9/7)
=45/28
=1又17/28
计算下面各题,能简便计算的用简便方法计算 2-6/13÷9/26 (1/3+1/4)×36 6/7×(4/5-2/3)÷
计算下面各题,能简便计算的要简便计算.3/5+3/4-5/6 8/9+2/7+5/7 15/8-3/4-1/4 = =
用递等式计算(能简便计算的用简便方法计算):(1)4.2÷0.25(2)1.46+(7.7+0.54)+2.3(3)(4
计算下面各题(能简便的用简便方法) 23/28+(13/14+2/7) 7-(3/4-5/2) 1/7+2/9+4/7+
计算下面各题(能简便的要简便计算) 6分之5+14分之11 6分之5-(9分之4-3分之1)
能简便的用简便方法计算. 6.28*3.7+62.8*0.63 = 5/7+1/3*9+4/13 =
【(8/7+6/1)÷8/5-4/3】×11/6简便方法计算(3/2+5/1)÷15/7×11/6简便方法计算
用简便方法计算下面各题.5/8*12*3/4,4/7*5/6*6,(1/5+3/4)*20,(5/6+2/9)*36,1
计算下面各题,能简便计算的要用简便方法计算. 296+73+104+37 1600÷25÷4 125×54-46×125
计算下面各题(能简便的用简便方法) 1/5+7/15+4/15 7/10-(3/4-2/5) 1-7/15-2/5 13
计算下面各题,能简便计算的用简便方法计算.
20-19+18-17.+4-3+2-1用简便方法计算下面各题