五年级分数计算题?以下是五年级下册分数简便计算题及答案:1. 计算: $ frac{7}{9} + frac{5}{13} + frac{2}{9} + frac{8}{13} $答案:步骤 1: 利用加法交换律和结合律,那么,五年级分数计算题?一起来了解一下吧。
2/3+4/5+1/3
=2/3+1/3+4/5
=1+4/5
=1又4/5
2/7+1/6+5/7+5/6
=2/7+5/7+(1/6+5/6)
=1+1
=2
1-2/9-7/9
=1-(2/9+7/9)
= 1-1
=0
3/5-1/4+2/5-3/4
=3/5+2/5-(1/4+3/4)
=1-1
=0
2/7x10+5/7x10
=(2/7+5/7)x10
=1x10
=10
10-5/2-3/1
= 10-5又1/2
=4又1/2
13/20+7/10-3/4
=17/20-15/20
=1/10
4/5+2/3+1/3
=4/5+(2/3+1/3)
=4/5+1
=1又4/5
2/7x10+5/7x10
=(2/7+5/7)X10
=1X10
=10
6-2/7-5/7
=6-(2/7+5/7)
=6-1
=5
75 1165 1
------ - ------ + ------------- + ------ - ------
86 127 14 2
1725 525
8 ------- -------- 1------ - 〔---- + ----〕
4242 9 3 9
511 11 217
— - 〔— + —〕— - — + — - —
961212 912 9
7 53 427
— + — - — — - — + —
126 4536
255853
— + 〔— - —〕 — - 〔— - —〕
3714 964
14 17 29 14 3
— - 〔— + —〕— - 〔— - —〕
15 430 3015 4
13 71117 19
— + — + —3 - — - —
24 82418 18

2.37+0.65=
13.5-8.7=
3.2*0.2=
5.6/14=
1.4*0.5=
3.16/0.1=
5.25-0.9=
1.25*0.8=

解,例如:
1/4+1/5
=5/20+4/20
=9/20
=20分之9
1/4-1/5
=5/20-4/20
=1/20
=20分之1
1/4x1/5
=1/20
=20分之1
1/4÷1/5
=1/4x5
=5/4
=4分之5
五年级分数解方程计算题 :
7χ÷1/2=3/5
9/8÷χ=1/4
1/7+x=9/14
4/9+x=1
x-3/4=5/6
x+1/6=4/3
3/4+x=7/8
x-(1/2+1/3)=1/6
x-1/3+2/3=2
x-2=5/6
x+4/5=1
x-1/4=1/3
以上就是五年级分数计算题的全部内容,五年级下册分数简便计算 用简便方法计算下列各题: ⑴ 529+154+471; ⑵ 6889+785+215; ⑶ 997+95+518; ⑷ 1624+7462+2538+8376。内容来源于互联网,信息真伪需自行辨别。如有侵权请联系删除。