六年级简便计算题大全及答案 简便计算题六年级:2/5÷4/15-2/5＝ 6/7×5/8+3/8÷7/6= （7

简便计算题六年级:2/5÷4/15-2/5＝ 6/7×5/8+3/8÷7/6= （7  

简便计算题六年级:2/5÷4/15-2/5＝ 6/7×5/8+3/8÷7/6= （7

4/5+3+2/3×4/5
=4/5*(1+2/3)+3
=4/5*5/3+3
=3+4/3
=13/3

（7/11-3/8）×88
=88*7/11-3/8*88
=56-33
=23

1/（2/3）/（3/4）/（4/5）/（5/6）/（6/7）/（7/8） 计算题“/” 为除号怎

改为乘号。
1*3/2*4/3*5/4....
后面约分。得到=1/2

六年级数学题:1/【2/3】/【3/4】/【4/5】/【5/6】/【6/7】/【7/8】

1/【2/3】/【3/4】/【4/5】/【5/6】/【6/7】/【7/8】
=1*3/2*4/3*5/4*6/5*7/6*8/7
=1/2*8
=4

1*2/5+2*3/5+3*4/5+4*5/5+5*6/5+6*7/5+7*8/5+8*9/5 简便计算并解释

别听楼下瞎说，题目哪有这么做的
1*2/5+2*3/5+3*4/5+4*5/5+5*6/5+6*7/5+7*8/5+8*9/5
=1*25+3*2/5+6*2/5+10*2/5+15*2/5+21*2/5+28*2/5+36*2/5
=（1+3+6+10+15+21+28+36）*2/5
=120*2/5
=240/5
=48
记得采纳哦，亲

六年级简便计算:(6又2/7+3又5/13)÷(2/7×2+4/13)=

(6又2/7+3又5/13)÷(2/7×2+4/13)
=(44/7+44/13)÷(4/7+4/13)
=(44/7÷4/7)+(44/13÷4/13)
=11+11
=22

7/8×5/6+1/8÷6/5简便计算?

7/8×5/6+1/8÷6/5
=7/8×5/6+1/8×5/6
=(7/8+1/8)×5/6
= 5/6
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2/7*5/6+5/7÷6/5 简便计算

2/7*5/6+5/7÷6/5
=2/7*5/6+5/7*5/6
=5/6*(2/7+5/7)
=5/6*1
=5/6

6/7×5/9+4/9×6/7（简便计算） 0.8-（2/3+1/12）×8/9 5/6÷（6-5/12-7/12

简便计算
6/7×5/9+4/9×6/7
=6/7x(5/9+4/9)
=6/7x1
=6/7
0.8-（2/3+1/12）×8/9
=4/5-2/3x8/9-1/12x8/9
=4/5-16/27-2/27
=4/5-2/3
=2/15
5/6÷（6-5/12-7/12)
=5/6÷（6-1）
=5/6÷5
=1/6

（12/7+8/7）*36 25/8*6/5+6/1*25/8 2/1-2/1*4/1 137*136/7 5/2*11-5/2 简便计算

你的分子分母写反了吧，因为分数线/相当于除号，分数线/的右边才是分母哦
（12/7+8/7）*36
=7/12*36 +7/8*36
=21+31.5
=52.5
25/8*6/5+6/1*25/8
=8/25x(5/6+1/6)
=8/25x1
=8/25
2/1-2/1*4/1
=1/2x(1-1/4)
=1/2x1/4
=1/8
137*136/7
=(136+1)x7/136
=136x7/136+1x7/136
=7+7/136
=7又7/136
5/2*11-5/2
=2/5x(11-1)
=2/5x10
=4

简便计算［7/5÷(5/7X2/3)］÷6/7

[7/5÷(5/7×2/3)]÷6/7
=7/5÷5/7÷2/3÷6/7
=(7/5×7/5)×(3/2×7/6)
=49/25×7/4
=343/100
=3.43