1.十四分之三减八分之五等于几分之几？ 2.三分之二减二分之一等于几分之几？ 3.六分之五减八分之
1.十四分之三减八分之五等于几分之几？
2.三分之二减二分之一等于几分之几？
3.六分之五减八分之一等于几分之几？
4.二分之一减三分之一等于几分之几？
5.八分之七减九分之五等于几分之几？
6.十一分之九减七分之三等于几分之几？
7.十分之七减三分之一等于几分之几？
8.十二分之十一减四分之一等于几分之几？
9.四十二分之十九减二十一分之五等于几分之几？
10.四十分之二十三减八分之三等于几分之几？
第1个回答 2015-02-09
1.3/14-5/8
=24/112-70/112
=-46/112
=-23/56
2.2/3-1/2
=4/6-3/6
=1/6
3.5/6-1/8
=40/48-6/48
=34/48
=17/24
4.1/2-1/3
=3/6-2/6
=1/6
5.7/8-5/9
=63/72-40/72
=23/72
6.9/11-3/7
=63/77-33/77
=30/77
7.7/10-1/3
=21/30-10/30
=11/30
8.11/12-1/4
=11/12-3/12
=8/12
=2/3
9.19/42-5/21
=19/42-10/42
=9/42
=3/14
10.23/40-3/8
=23/40-15/40
=8/40
=1/5
望采纳 有问题再追问追问
=24/112-70/112
=-46/112
=-23/56
2.2/3-1/2
=4/6-3/6
=1/6
3.5/6-1/8
=40/48-6/48
=34/48
=17/24
4.1/2-1/3
=3/6-2/6
=1/6
5.7/8-5/9
=63/72-40/72
=23/72
6.9/11-3/7
=63/77-33/77
=30/77
7.7/10-1/3
=21/30-10/30
=11/30
8.11/12-1/4
=11/12-3/12
=8/12
=2/3
9.19/42-5/21
=19/42-10/42
=9/42
=3/14
10.23/40-3/8
=23/40-15/40
=8/40
=1/5
望采纳 有问题再追问追问
4 5/6-2 3/4=？
追答4又5/6-2又3/4?
=29/6-11/4
=116/24-66/24
=50/24
=25/12
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