如题所述
第1个回答 2011-11-15
3/4-3/4÷3+1/5 (8/7-4/5)*7/8
=3/4-1/4+1/5 = 1-7/10
=2/4+1/5 =3/10
=7/10
如果错了告诉我哈追问
=3/4-1/4+1/5 = 1-7/10
=2/4+1/5 =3/10
=7/10
如果错了告诉我哈追问
99*99/100=?呢
追答就是9801/100吧。。
本回答被提问者采纳第2个回答 2011-11-15
3/4-3/4÷3+1/5=3/4-1/4+1/5=1/2+1/5=7/10
(8/7-4/5)*7/8
=8/7x7/8-4/5x7/8
=1-7/10
=3/10追问
(8/7-4/5)*7/8
=8/7x7/8-4/5x7/8
=1-7/10
=3/10追问
99*99/100=?呢?