如题所述
第1个回答 2019-09-10
5/26×7/24+7/26×19/24
=5/26×7/24+19/26×7/24
=(5/26+19/26)x7/24
=24/26x7/24
=7/26
希望能帮到你!本回答被网友采纳
=5/26×7/24+19/26×7/24
=(5/26+19/26)x7/24
=24/26x7/24
=7/26
希望能帮到你!本回答被网友采纳
第2个回答 2019-09-10
(5/26)x(7/24)+(7/26)x(19/24)
=(7/26)(1/24)(5+19)
=(7/26)(5/6)
=35/156
=(7/26)(1/24)(5+19)
=(7/26)(5/6)
=35/156
第3个回答 2019-09-10
如图所示望采纳