Question

给我十道五年级分数加减简便运算题，四个数的。

Answer 1

6/7＋2/15＋1/7＋13/15
19/21＋5/7－3/14
2/3＋5/9－2/3＋5/9

8/9+（1/4－1/9）+3/4
0.58+5/13+1.12+8/13
11-4/11-7/11

14/15－（6/15 +1/3）
3/5－0.81 －0.19
7/8+1/8 －5/9 －4/9

22+55÷11-2/8
1/7+33.5+6/7-3.5
7.09-5/12+12.03-7/12
是要这样的吗...很高兴能帮到您...望采纳~~~~

Answer 2

2/3-7/8+1/3
=(2/3+1/3)-7/8
=1-7/8
=1/8
5/6-(3/7-1/6)
=(5/6+1/6)-3/7
=1-3/7
=4/7
1-1/3-2/3
=1-(1/3+2/3)
=1-1
=0
1+3/5-1/10
=1+6/10-1/10
=1+1/2
=1又1/2
3/8-12/13+5/8
=3/8+5/8-12/13
=1-12/13
=1/13
1-(1/2-3/4)
=1+3/4-2/4
=1+1/4
=5/4
1-1/2-1/4
=1/2-1/4
=2/4-1/4
=1/4
2/7-8/9+5/7
=(2/7+5/7)-8/9
=1-8/9
=1/9
2-1/4-3/4
=2-(1/4+3/4)
=2-1
=1
1/2-(3/8-1/2)
=1/2+1/2-3/4
=1-3/8
=5/8

Answer 3

去百度查就行了