13又4/11-(2又2/3-7/11)能简算的要简算

问题描述:

13又4/11-(2又2/3-7/11)能简算的要简算

13又4/11-(2又2/3-7/11)
=13又4/11-2又2/3+7/11
=13又4/11+7/11-2又2/3
=14-2又2/3=11又1/3

13又4/11-(2又2/3-7/11)
=13又4/11+7/11-2又2/3
=14-2又2/3
=11又1/3