(12/5+9/1-8/3)×72答案等于11

问题描述:

(12/5+9/1-8/3)×72
答案等于11

=(36+135-40)/15*72=131*24/5=628.8

(12/5+9/1-8/3)×72
=12/5×72+9/1×72-8/3×72
=30+8-27
=11