求几道6年级的简便应用题

1.(8份之3+6份之5)乘24
=24*3/8+24*5/6
=9+20
=29

2.23乘22份之5
=23*5/22
=（22+1）*5/22
=22*5/22+1*5/22
=5+5/22
=5又5/22

3.4份之3乘8份之5+4份之1乘8份之5
=3/4*5/8+1/4*5/8
=5/8（3/4+1/4）
=5/8*1
=5/8

1.= 3/8 * 24 + 5/6*24 = 9+20 = 29
2.= 115/22(感觉你题目没说全）
3.= 3/4 * 5/8 + 1/4*5/8 = (3/4 + 1/4)*5/8 = 5/8
1.(8份之3+6份之5)乘24
=24*3/8+24*5/6
=9+20
=29

2.23乘22份之5
=23*5/22
=（22+1）*5/22
=22*5/22+1*5/22
=5+5/22
=5又5/22

3.4份之3乘8份之5+4份之1乘8份之5
=3/4*5/8+1/4*5/8
=5/8（3/4+1/4）
=5/8*1
=5/8

1
24/29*24=29 24和 24约分
2
23*22/5=22/110 不能约分
3
4/3*8/5+4/1*8/5
=32/15+32/5
=32/20
=8/5
左边的代表几分 又边就是之几
* 是乘的意思

1.= 3/8 * 24 + 5/6*24 = 9+20 = 29
2.= 115/22(感觉你题目没说全）
3.= 3/4 * 5/8 + 1/4*5/8 = (3/4 + 1/4)*5/8 = 5/8