果园里有桃树35棵,杏树30棵,桃树占这两种树的几分之几(还要算式)
问题描述:
果园里有桃树35棵,杏树30棵,桃树占这两种树的几分之几(还要算式)
答
(35+30)除以35
答
35/(35+30)=35/75=7/12
答
35÷(35+30)=7/13
答
35/(35+30)
答
35/(35+30)=7/13