xqzz.net
当前位置:首页 >> 列竖式计算9/7+1/8+3/8+5/7 >>

列竖式计算9/7+1/8+3/8+5/7

9/7+1/8+3/8+5/7 =(9/7+5/7)+(1/8+3/8) =14/7+4/8 =2+1/2 =2又2分之1

=(9/7+5/7)-(1/8+3/8) =2-1/2 =3/2

5/8+1/7+3/8 =5/8+3/8+1/7 =1+1/7 =1又1/7

=9/8+7/8+(1/9+8/9) =2+1 =3

如图

80/72

1/6+1/5+1/2 =5/30+6/30+15/30 =11/30+15/30 =13/15

4/3—(2/5+3/1O丿=4O/3O一{I2/30+9/3o)=4o/30_21/3o=丨9/30先通分再计算

1/8+(7/8-5/12) =1/8+7/8-5/12 =1-5/12 =7/12

网站首页 | 网站地图
All rights reserved Powered by www.xqzz.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com