如题所述
第1个回答 2012-05-26
5/27÷4+22/27×0.25
=5/27x1/4+22/27×1/4
=(5/27+22/27)x1/4
=1x1/4
=1/4本回答被提问者采纳
=5/27x1/4+22/27×1/4
=(5/27+22/27)x1/4
=1x1/4
=1/4本回答被提问者采纳
第2个回答 2012-05-26
5/27÷4+22/27×0.25=5/27÷4+22/27÷4=（5/27+22/27)÷4=1÷4=1/4
第3个回答 2012-05-26
5/27÷4+22/27×0.25
=（5/27+22/27）×0.25
=1×0.25
=0.25
=（5/27+22/27）×0.25
=1×0.25
=0.25
