ldcf.net
当前位置:首页 >> 八除以1+7括号括回列脱式计算怎么做 >>

八除以1+7括号括回列脱式计算怎么做

八除以1+7括号括回列脱式计算怎么做 8÷(1+7) =8÷8 =1. 请采纳,谢谢.

1/7_1/8脱式计算 =56分之8一56分之7 =56分之1

7/8-括号5/12+1/6括回脱式计算 (7/8)-(5/12+1/6) =(7/8)-(7/12) =(21/24)-(14/24) =7/24.

5/6-(1/7+1/8) =5/6-(8/56+7/56) =5/6-15/56 =140/168-45/168 =95/168 =168分之95

red

(-1-1/4×8/9)÷7/9 =(-1×9/7)-(1/4×9/7)×(8/9×9/7) =-9/7-9/28×8/7 =-36/28-9/28×8/7 =-36/28-36/98 =-63/49-18/49 =-81/49

80/72

2/7÷(3/5+1/3) =2/7÷(9/15+5/15) =2/7÷(14/15) =2/7×15/14 =15/49

4x=8/7*(1/5-1) 4x=8/7*(-4/5) 4x=-32/35 x=-32/35*1/4 x=-8/35 谢谢,请采纳

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