第1个回答 2017-07-30
4/13 + 2/13 = 6/13
15/24-7/12 = 1/24
4/6+5/7 =58/42
11/48+2/16 =17/48
2/10+3/7 = 22/35
7/12+3/6=13/12
5/6-1/2=1/3
9/32 - 9/48 =3/32
2/4+3/6 = 1
4/6+2/16= 19/24
6/18+4/9 =7/9
6/12+4/8=1
11-8/7 =69/7
5-2又3/7=2又4/7
5/6-1/6=2/3
7/17+3/17=10/17
7/32+9/32 =1/2
11/54+15/54=13/27
12/63+11/63=23/63
13/66-4/66 =3/22
7/13+6/13=1
1-7/25=18/25
9/28+11/28=5/7
17/62+13/62=15/31
4/5+3/5=7/5
5/18+5/18+1/4=29/36
3/6-1/6+7/12=11/12
16/25-7/25+1/6=79/150
14/15-7/15+3/15=2/3
23/14-19/24+5/24=89/84
②
1/7+4/7= 5/7
26/11 - 2又1/11= 3/11
6/8-1/2= 1/4
2/7+6/7= 8/7
4/5-7/10= 1/10
4/6-2/6= 1/3
9/2+3又1/2= 1
21/4-6/5= 81/20
8/7+16/7=24/7
4/6-2/3+2/1= 2
4/7+2/7-1/7= 5/7
3/6-1/3+1/8= 7/24
8/9-4/9+3/8= 59/72
1/6+1/7+1/8= 73/168
2/9+6/7+1/5= 403/315
24/11+1/2-4/13= 268/143
16/8-15/20+1又1/2 =2又3/4
3/14-2/14+1/15= 29/210
39/67-(9/67+8/67)= 22/67
24/53-(14/53+2/53)= 8/53
37/62-(17/62+4/62)= 8/31
39/47-(19/47+9/47)= 11/47
39/59-(9/59+19/59)= 11/59
59/74-(29/74+8/74)= 11/37
27/36-(17/36+7/36)= 1/12
7/6-2/6-1/6= 2/3
可能有哪里算错了,纯心算,笔算
第2个回答 2017-07-30
4/13 + 2/13 = 6/13
15/24-7/12 = 1/24
4/6+5/7 =29/21
11/48+2/16 =17/48
2/10+3/7 = 22/35
7/12+3/6=13/12
5/6-1/2=1/3
9/32 - 9/48 =3/32
2/4+3/6 = 1
4/6+2/16= 19/24
6/18+4/9 =7/9
6/12+4/8=1
11-8/7 =69/7
5-2又3/7=18/7
5/6-1/6=2/3
7/17+3/17=10/17
7/32+9/32 =1/2
11/54+15/54=13/27
12/63+11/63=23/63
13/66-4/66 =3/22
7/13+6/13=1
1-7/25=18/25
9/28+11/28=5/7
17/62+13/62=15/31
4/5+3/5=7/5
5/18+5/18+1/4=29/36
3/6-1/6+7/12=11/12
16/25-7/25+1/6=79/150
14/15-7/15+3/15=2/3
23/14-19/24+5/24=89/84
②
1/7+4/7= 5/7
26/11 - 2又1/11= 3/11
6/8-1/2= 1/4
2/7+6/7= 8/7
4/5-7/10= 1/10
4/6-2/6= 1/3
9/2+3又1/2= 8
21/4-6/5= 81/20
8/7+16/7=24/7
4/6-2/3+2/1= 2
4/7+2/7-1/7=5/7
3/6-1/3+1/8= 7/24
8/9-4/9+3/8= 59/72
1/6+1/7+1/8= 73/168
2/9+6/7+1/5= 403/315
24/11+1/2-4/13= 679/286
16/8-15/20+1又1/2 =22/8
3/14-2/14+1/15= 29/210
39/67-(9/67+8/67)= 22/67
24/53-(14/53+2/53)= 8/53
37/62-(17/62+4/62)= 8/31
39/47-(19/47+9/47)=11/47
39/59-(9/59+19/59)=11/59
59/74-(29/748/74)= ?算式不对
27/36-(17/36+7/36)= 1/12
7/6-2/6-1/6= 2/3
第3个回答 2008-12-11
4/13 + 2/13 = 6/13
15/24-7/12 = 29/24
4/6+5/7 =29/21
11/48+2/16 =17/48
2/10+3/7 = 22/35
7/12+3/6=13/12
5/6-1/2=1/3
9/32 - 9/48 =
2/4+3/6 = ?
4/6+2/16= ?
6/18+4/9 =?
6/12+4/8=?
11-8/7 =?
5-2又3/7=?
5/6-1/6=?
7/17+3/17=?
7/32+9/32 =?
11/54+15/54=?
12/63+11/63=?
13/66-4/66 =?
7/13+6/13=?
1-7/25=?
9/28+11/28=?
17/62+13/62=?
4/5+3/5=?
5/18+5/18+1/4=?
3/6-1/6+7/12=?
16/25-7/25+1/6=?
14/15-7/15+3/15=?
23/14-19/24+5/24=?
②
1/7+4/7=
26/11 - 2又1/11=
6/8-1/2=
2/7+6/7=
4/5-7/10=
4/6-2/6=
9/2+3又1/2=
21/4-6/5=
8/7+16/7=?
4/6-2/3+2/1=
4/7+2/7-1/7=
3/6-1/3+1/8=
8/9-4/9+3/8=
1/6+1/7+1/8=
2/9+6/7+1/5=
24/11+1/2-4/13=
16/8-15/20+1又1/2
3/14-2/14+1/15=
39/67-(9/67+8/67)=
24/53-(14/53+2/53)=
37/62-(17/62+4/62)=
39/47-(19/47+9/47)=
39/59-(9/59+19/59)=
59/74-(29/748/74)=
27/36-(17/36+7/36)=
7/6-2/6-1/6=
第4个回答 2017-07-27
4/13 + 2/13 = 6/13
15/24-7/12 = 1/24
4/6+5/7 =29/21
11/48+2/16 =17/48
2/10+3/7 = 22/35
7/12+3/6=13/ 12
5/6-1/2=1/3
9/32 - 9/48 =3/32
2/4+3/6 = 1
4/6+2/16= 19/24
6/18+4/9 =7/9
6/12+4/8=1
11-8/7 =69/7
5-2又3/7=18/7
5/6-1/6=2/3
7/17+3/17=10/17
7/32+9/32 =1/2
11/54+15/54=13/27
12/63+11/63=23/63
13/66-4/66 =3/22
7/13+6/13=1
1-7/25=18/25
9/28+11/28=10/14
17/62+13/62=15/31
4/5+3/5=8/5
5/18+5/18+1/4=29/36
3/6-1/6+7/12=13/12
16/25-7/25+1/6=79/150
14/15-7/15+3/15=2/3
23/14-19/24+5/24=3/8
②
1/7+4/7= 5/7
26/11 - 2又1/11= 3/11
6/8-1/2= 1/4
2/7+6/7= 8/7
4/5-7/10= 1/10
4/6-2/6= 1/3
9/2+3又1/2= 8
21/4-6/5= 81/20
8/7+16/7=24/7
4/6-2/3+2/1= 2
4/7+2/7-1/7= 5/7
3/6-1/3+1/8= 7/24
8/9-4/9+3/8=59/72
1/6+1/7+1/8= 73/168
2/9+6/7+1/5=403/315
24/11+1/2-4/13= 679/286
16/8-15/20+1又1/2=11/4
3/14-2/14+1/15= 29/210
39/67-(9/67+8/67)= 22/67
24/53-(14/53+2/53)= 8/53
37/62-(17/62+4/62)= 8/31
39/47-(19/47+9/47)= 11/47
39/59-(9/59+19/59)= 31/59
59/74-(29/748/74)=
27/36-(17/36+7/36)= 1/23
7/6-2/6-1/6= 2/3
望采纳!!