Question

计算下面各题

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=1/3
7/14+5/2=7/14+35/14=1/3
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=1/6
4/5-7/10=1/10
3/4-5/12=1/3
7/15+9/10=41/30
8/9-5/12=17/36

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=6/11-6/11+7/8
9/23+(14/23-9/20)=9/23+14/23-9/20
9-8/17-9/17=9-(8/17+9/17)
13/32-(3/4-3/8)
3/13+6/7+10/13=3/13+10/13+6/7
2-8/13-5/13=2-(8/13+5/13)

解方程
X-7/12=5/9x=5/9+7/127/10-x=2/3x=7/10-2/3
x-4/7=1/5x=1/5+4/712/11-x=1/7x=12/11-1/7
2x+5/8=5/82x=5/8-5/82x=0x=0
x+7/18=5/6x=5/6-7/18

Answer 2

题不难 但是 你的靠自己的 努力哈