13/7*3.6+18/5*50/7+3.6

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/18 22:41:36
13/7*3.6+18/5*50/7+3.613/7*3.6+18/5*50/7+3.613/7*3.6+18/5*50/7+3.613/7*3.6+18/5*50/7+3.6=(13/7+1)*3.

13/7*3.6+18/5*50/7+3.6
13/7*3.6+18/5*50/7+3.6

13/7*3.6+18/5*50/7+3.6
13/7*3.6+18/5*50/7+3.6
=(13/7 +1)*3.6 +18*10/7
=2*36/7+36*5/7
=36*(2+5)/7
=36

(13/7+7/7)×3.6+18/5×50/7=20/7×18/5+18/5×50/7=(20×18+18×50)/(5×7)=(70×18)/(5×7)=36