Question

计算下面各题，要过程

计算下面各题
2/5-1/15
7/14+5/2
5/8-3/20
27/100-7/50
1/4-1/7
7/15-1/9
6/7+3/28
4/15-1/10
4/5-7/10
3/4-5/12
7/15+9/10
8/9-5/12

脱式计算，能简算简算
5/6-2/3+1/8
7/10+3/8-1/5
5/16+1/9+8/9
6/11+7/8-6/11
9/23+(14/23-9/20)
9-8/17-9/17
13/32-(3/4-3/8)
3/13+6/7+10/13
2-8/13-5/13

解方程
X-7/12=5/9
7/10-x=2/3
x-4/7=1/5
12/11-x=1/7
2x+5/8=5/8
x+7/18=5/6

Answer 1

计算下面各题
2/5-1/15=6/15-1/15=5/15=1/3
7/14+5/2=1/2+5/2=3
5/8-3/20=25/40-6/40=19/40
27/100-7/50=27/100-14/100=13/100
1/4-1/7=7/28-4/28=3/28
7/15-1/9=21/45-5/45=16/45
6/7+3/28=24/28+3/28=27/28
4/15-1/10=8/30-3/30=5/30=1/6
4/5-7/10=8/10-7/10=1/10
3/4-5/12=9/12-5/12=4/12=1/3
7/15+9/10=14/30+27/30=41/30
8/9-5/12=32/36-15/36=17/36
脱式计算，能简算简算
5/6-2/3+1/8=5/6-4/6+1/8=1/6+1/8=4/24+3/24=7/24
7/10+3/8-1/5=7/10-2/10+3/8=1/2+3/8=4/8+3/8=7/8
5/16+1/9+8/9=1/9+8/9+5/16=1+5/16=21/16
6/11+7/8-6/11=6/11-6/11+7/8=7/8
9/23+(14/23-9/20)=9/23+14/23-9/20=1-9/20=11/20
9-8/17-9/17=9-(8/17+9/17)=9-1=8
13/32-(3/4-3/8)=13/32-3/4+3/8=13/32-24/32+12/32=1/32
3/13+6/7+10/13=3/13+10/13+6/7=1+6/7=13/7
2-8/13-5/13=2-(8/13+5/13)=2-1=1
解方程
X-7/12=5/9 x=7/12+5/9 x=41/36
7/10-x=2/3 x=7/10-2/3 x=1/30
x-4/7=1/5 x=4/7+1/5 x=27/35
12/11-x=1/7 x=12/11-1/7 x=73/77
2x+5/8=5/8 2x=5/8-5/8 x=0
x+7/18=5/6 x=5/6-7/18 x=8/18 x=4/9

Answer 2

1/3
3
19/40
13/100
3/28
16/45
27/28
1/6
1/10
1/3
41/30
17/36
脱式计算：
7/24
7/8
21/16
7/8
11/20
8
1/32
13/7
1
解方程
x=41/36
x=1/30
x=27/35
x=73/77
x=0
x=4/9

利用上班时间，忙里抽闲给你算的，望采纳！

Answer 3

他们回答得就很好!