Question

求小学五年级下册数学分数简便计算题！！！

急急急急！！！！！

Answer 1

4乘（72-19）除以4+2
84.7×7－54.7×7
3.26×0.52+3.26×0.48+7.05
87.4×27.6+73.4×87.4－87.4
【10－（0.2+6.37÷0.7）】÷0.01
5.7×101 4.2×（12.5－7.5÷0.75）
30.8÷[14－(9.85＋1.07)]
[60－(9.5＋28.9)]÷0.18
2.881÷0.43－0.24×3.5
20×[(2.44－1.8)÷0.4＋0.15]
28-(3.4+1.25×2.4)
2.55×7.1+2.45×7.1
777×9+1111×3
0.8×〔15.5-(3.21+5.79)〕
（31.8+3.2×4）÷5
31.5×4÷(6+3)
0.64×25×7.8+2.2
2÷2.5+2.5÷2
194－64.8÷1.8×0.9
36.72÷4.25×9.9
5180－705×6
24÷2.4－2.5×0.8
(4121+2389)÷7
671×15-974
469×12+1492
405×(3213-3189)
3.416÷（0.016×35）
0.8×[(10－6.76)÷1.2]
19.4×6.1×2.3
5.67×0.2-0.62
18.1×0.92+3.93
0.0430.24+0.875
0.4×0.7×0.25
0.75×102 100-56.23
0.78+5.436+1
4.07×0.86+9.12.5
30.8÷[14－(9.85＋1.07)]
[60－(9.5＋28.9)]÷0.18
2.881÷0.43－0.24×3.5
20×[(2.44－1.8)÷0.4＋0.15]
28-(3.4+1.25×2.4)
2.55×7.1+2.45×7.1
777×9+1111×3
0.8×〔15.5-(3.21+5.79)〕
（31.8+3.2×4）÷5
31.5×4÷(6+3)
0.64×25×7.8+2.2
2÷2.5+2.5÷2
194－64.8÷1.8×0.9
36.72÷4.25×9.9
5180－705×6
24÷2.4－2.5×0.8
(4121+2389)÷7
671×15-974
469×12+1492
405×(3213-3189)
3.416÷（0.016×35）
0.8×[(10－6.76)÷1.2]
19.4×6.1×2.3 5.67×0.2-0.62

18.1×0.92+3.93 0.0430.24+0.875

0.4×0.7×0.25 0.75×102 100-56.23

0.78+5.436+1 4.07×0.86+9.12
30.8÷[14－(9.85＋1.07)]
[60－(9.5＋28.9)]÷0.18
2.881÷0.43－0.24×3.5
20×[(2.44－1.8)÷0.4＋0.15]
28-(3.4+1.25×2.4)
2.55×7.1+2.45×7.1
777×9+1111×3 0.8×〔15.5-(3.21+5.79)〕
（31.8+3.2×4）÷5 31.5×4÷(6+3)
0.64×25×7.8+2.2 2÷2.5+2.5÷2
194－64.8÷1.8×0.9 36.72÷4.25×9.9
5180－705×6 24÷2.4－2.5×0.8 (4121+2389)÷7
671×15-974 469×12+1492 405×(3213-3189)
3.416÷（0.016×35） 0.8×[(10－6.76)÷1.2]
19.4×6.1×2.3 5.67×0.2-0.62
18.1×0.92+3.93
0.0430.24+0.875
0.4×0.7×0.25
0.75×102 100-56.23
0.78+5.436+1 4.07×0.86+9.12.5 30.8÷[14－(9.85＋1.07)] [60－(9.5＋28.9)]÷0.18 2.881÷0.43－0.24×3.5 20×[(2.44－1.8)÷0.4＋0.15] 28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×3 0.8×〔15.5-(3.21+5.79)〕 （31.8+3.2×4）÷5 31.5×4÷(6+3) 0.64×25×7.8+2.2 2÷2.5+2.5÷2 194－64.8÷1.8×0.9 36.72÷4.25×9.9 5180－705×6 24÷2.4－2.5×0.8 (4121+2389)÷7 671×15-974 469×12+1492 405×(3213-3189) 3.416÷（0.016×35） 0.8×[(10－6.76)÷1.2] 19.4×6.1×2.3 5.67×0.2-0.62 18.1×0.92+3.93 0.0430.24+0.875 0.4×0.7×0.25 0.75×102 100-56.23 0.78+5.436+1 4.07×0.86+9.12.5
够了吧！！

追问

谢谢！有分数的吗？因为我还差一些分数简便计算。谢谢

追答

5/6-3/4+2/3-1/4
=5/6+2/3-(3/4-1/4)
=5/6+4/6-1
=3/6
=1/2

13/12-2/7-5/7+5/6
=13/12+5/6-(2/7+5/7)
=13/12+10/12-1
=11/12

17/6+5/9-1/9
=17/6+4/9
=51/18+8/18
=59/18
呵呵

Answer 2

五年级就是加减法：2/3+4/5+1/3 2/7+1/6+5/7+5/6 1-2/9-7/9 3/5-1/4+2/5-3/4

追问

请问还有吗？因为还要写好多QAQ.....

Answer 3

把分母进行最小公倍数计算，各分子乘以分母扩大的倍数，然后相加或者相减计算。

追问

......我要的是分数计算题......

追答

3/5+7/9=? 1/2-1/5=?

追问

......

Answer 4

(1)(2/3+1/3)+4/5=1+4/5
(2)(2/7+5/7)+(1/6+5/6)=2
(3)1-(2/9+7/9)=0
(4)(3/5+2/5)-(1/4+3/4)=0

Answer 5

学习不理想可以参加辅导。

追问

谁说我学习不理想！！这个期末我语文100，数学97，英语99！！！！>＿<