同分母加减法150道带答案方程150道带答案.doc

同分母加减法同分母：1/8+3/8=1/2 5/18+7/18=2/3 2/9+4/9=2/3 4/5-2/5=2/53/5-3/5=0 3/5-2/5=1/5 5/7+3/7=8/7 7/10-3/10=2/55/9+2/9=7/9 5/7-2/7=3/7 2/5+4/5=6/5 1/8+1/8=1/42/3+1/3=1 19/21-5/21=2/3 5/9+7/9=4/3 7/2+1/2=44/5+3/5=7/5 7/11-4/11=3/11 7/12+5/12=1 9/10+7/10=8/57/10-3/10=2/5 11/20-5/20=3/10 5/12-1/12=1/3 3/12-1/12=1/69/10+1/10=1 5/6-1/6=2/3 3/7-1/7=2/7 1/3+1/3=2/33/5-2/5=1/5 3/4+3/4=3/2 3/4-1/4=1/2 4/5+1/5=116/24-10/24=1/4 6/7+1/7=1 4/9-3/9=1/9 13/4+1/4=7/25/8+1/8=3/4 8/9+7/9=5/3 8/9-2/9=2/3 3/10+1/10=2/58/11+5/11=13/11 1/3+2/3=1 11/19+8/19=1 4/15+1/15=1/35/9-5/9=0 5/4+7/4=3 2/3-2/3=0 5/7-4/7=1/73/5-2/5=1/5 7/8-5/8=1/2 7/12-1/12=1/2 17/8-7/8=5/41/6+1/6=1/3 8/3-2/3=2 5/11+5/11=10/11 5/8+2/8=7/86/7-3/7=4/7 5/7+5/7=10/7 11/29+6/29=17/29 9/11-2/11=7/1117/19-6/19=11/19 5/6+1/6=1 6/10+6/10=6/5 3/5+3/5=6/5 1/20+2/20=3/20 3/4+3/4=3/21/6+5/6=1 5/9-2/9=1/3 5/6-2/6=1/25/7-5/7=0 11/14+9/14=10/7 7/12+3/12=5/65/8+7/8=13/8 3/5-1/5=2/5 7/7-3/7=4/78/9-4/9=4/9 7/8-2/8=5/8 9/9-4/9=5/92/9+4/9=2/3 5/6+7/6=2 9/12+2/12=11/127/10-3/10=2/5 7/11+4/11=1 12/15-10/15=5/63/5+3/5=6/5 11/15-4/15=7/15 3/15+5/15=8/155/8+5/8=5/4 7/12-1/12=1/2 16/20+25/20=41/201/7+2/7+3/7=6/7 15/15-5/15-9/15=1/151/8+3/8+5/8+7/8=2 6/12+3/12+4/12=13/123/12+4/12+5/12=1 7/8+2/8-4/8=5/83/5+3/5+1/5=7/5 5/10+3/10-2/10=3/51/11+5/11-6/11=0 8/8-2/8-3/8=3/8异分母：3/4+1/5=4/5 3/4-1/5=11/20 5/6+2/9=19/18 5/6-2/9=11/18 2/3+3/5=19/152/3-3/5=1/15 6/7+1/2=19/14 6/7-1/2=5/14 2/3+1/6=5/6 1/3+1/4=7/121/3-1/4=1/12 1/5+1/7=12/35 1/5-1/7=2/35 1/4+1/9=13/36 1/4-1/9=5/361/8+1/9=17/72 1/8-1/9=1/72 1/10+7/9=79/90 5/7-1/6=23/42 1-5/9=4/91/5+3/8=23/40 3/4+1/5=19/20 2/3-3/5=1/5 1-2/5=3/5 5/8-1/9=37/721/10-1/20=1/20 1/6+3/8=13/24 5/9-1/2=1/18 2/3+1/4=11/12 1/2+1/3=5/65/6+1/18=8/9 3/5-1/3=4/15 17/15-1/3=4/5 11/12-2/3=1/4 1/2-1/4=1/41/7-1/8=1/56 1/3-1/9=2/9 5/6-1/2=1/3 1-2/3=1/3 5/8-1/6=11/241/3+1/6=1/2 3/4-1/2=1/4 1/5+1/8=13/40 5/6+4/9=23/18 5/9-2/5=7/453/7+5/2=41/14 5/8+9/10=61/40 11/12-8/15=23/60 1/4+1/6=5/12 1/4-1/6=1/121-6/7=1/7 11/12-2/3=1/4 3/10+2/5=7/10 7/8-1/4=5/8 3/4+5/12=7/63/5-3/7=6/35 5/4-5/12=5/6 1/5-1/9=4/45 1/3-1/8=5/24 11/6-2/9=29/181/5+1/9=14/45 1-2/5=3/5 7/4+1/7=53/28 1-1/9=8/9 2/3-2/7=8/215/6+1/2=4/3 4/3-3/4=7/12 1-4/7=3/7 4/3+3/2=17/6 5/9+18/5=5/63/8+7/10+5/8=17/10 7/8- (1/8+3/4)=0 4/7+1/6-4/7=1/62-7/9-2/9=1 3/5+7/8+2/5=15/8 7/9- (1/9+1/3)=1/31/4+ (2/5+3/4)=7/5 。