有一块棉布长3米,正好可以做4件同样大小的儿童睡衣.每件儿童睡衣会用掉这块布的几分之几?每件儿童睡衣用布多少米?

问题描述:

有一块棉布长3米,正好可以做4件同样大小的儿童睡衣.每件儿童睡衣会用掉这块布的几分之几?每件儿童睡衣用布多少米?

①1÷4=

1
4

答:每件儿童睡衣会用掉这块布的
1
4

②3÷4=
3
4
(米);
答:每件儿童睡衣用布
3
4
米.