"title": "分数加减法简便计算综合练习" 4/7-5/14-1/7= 5/9+4/5+1/9= 2/3+2/5+2/3-2/5= 2/3-2/7-2/7= 8/13+5/8+5/13-3/8= 2/3+1/2+1/3= 3/4-(1/4+1/4)= 13/18-1/3-1/3= 19/20-1/8-1/8= 3/5+1/2+3/5-1/2= 1/2+4/5+1/2+1/5= 5/6+1/4-5/6+3/4= 3/4-1/3-1/4= 3/5+1/10+4/5+1/10= 1/4+3/5+4/5+1/4= 2/3-3/10-3/10= 1/7+1/2+1/2= 2/5+1/2+1/2+3/5= 4/7-(1/6+1/7)-1/6= 4/5-1/3-1/3= 1/7+4/9+1/7= 3/5-1/3-1/5= 4/5-(1/4+1/5)-1/4= 3/4+1/15-1/4+2/15= 9/11+2/3+2/11+2/3= 3/5+2/3+1/5+1/3= 3/8+1/4+3/4= 5/7+2/5-5/7+4/5= 3/4+2/3+3/4-1/3= 7/10-1/3-1/3= 11/16-(1/5+3/16)= 3/4-(1/10+1/4)-3/10= 4/9+4/7+5/9+6/7= 5/7+2/5+1/7+2/5= 6/7-1/3-1/3= 6/7-(1/3+1/7)-1/3= 2/3-(1/18+1/3)-1/18= 2/3+3/4+1/4+2/3= 3/4+4/5+1/4+2/5= 12/17-1/4-1/4= 4/7+4/9+6/7= 7/10+2/3+2/3= 5/7-(1/6+1/7)-1/6= 4/5+3/5+2/5-3/5= 3/4-(2/5+1/4)= 1/10+3/5+7/10+4/5= 5/6-1/3-1/3= 1/5+2/5+3/5-2/5= 3/4-2/5-1/5= 8/9-1/2-1/9= 15/19+3/5+4/19+4/5= 2/5+9/10+1/5-3/10= 3/5+8/15+4/15+1/5= 2/9+9/16+9/16= 7/8-(2/5+1/8)-1/5= 3/4-4/9-1/4= 4/5-1/2-1/5= 2/3+2/15+1/3+7/15= 2/3+1/5+2/3-1/5= 2/3-1/4-1/4= 6/7-(1/2+1/7)= 5/7-(1/8+1/7)-3/8= 9/10-(5/8+1/10)-1/8= 19/20-2/5-7/20= 1/10+1/3+1/3= 1/5+3/10-1/5+7/10= 1/3+7/9+1/3-1/9= 1/2+1/4-1/2+1/4= 8/9+5/6+4/9= 4/5-9/20-1/5= 15/16+5/14+13/16+3/14= 5/8-(1/14+1/8)= 8/9-1/6-1/9= 5/7-1/5-2/5= 1/3+1/4+1/3+1/4= 3/4-(1/7+1/4)-1/7= 2/3+6/7+2/3+4/7= 6/7-1/5-3/5= 2/7+1/14+2/7-1/14= 2/3+3/4+2/3+3/4= 1/6+2/5+5/6= 4/5-(3/10+1/5)-1/10= 2/3-(5/18+1/3)= 13/14-(1/4+3/14)-1/4= 3/4-(2/7+1/4)= 1/3+4/5+2/3+2/5= 3/4+1/5+4/5= 1/3+5/8+1/3-3/8= 13/16+2/7+11/16= 3/5-(1/6+1/5)= 3/4-(4/17+1/4)= 4/5-3/8-1/8= 2/3-(2/7+1/3)= 17/20-1/5-9/20= 1/2+1/3+1/3+1/2= 1/2+2/3+1/2+2/3= 2/3-2/9-1/3= 9/10-(1/3+1/10)-1/3= 5/8-(1/5+1/8)-1/5= 3/7-(1/7+1/7)= 3/4-4/9-1/4= 5/7-2/5-1/5= 10/17-1/4-1/4= 19/20-(1/4+3/20)-1/4= 7/10-(2/9+3/10)-1/9= 6/7-(1/4+2/7)-1/4= 5/8+2/3+1/3= 3/4-1/3-1/4= 1/5+2/7+6/7= 6/7-(1/3+3/7)= 2/3+3/7+3/7= 8/9-(1/6+4/9)-1/6= 4/7+5/9+7/9= 1/14+9/11+3/14-9/11= 2/3-(2/7+1/3)= 3/4-(1/6+1/4)-1/6= 1/8+2/3+7/8+2/3= 2/3-(1/4+1/3)= 4/5-(1/4+1/5)-1/4= 1/10+5/8+5/8= 9/10-(2/7+3/10)-1/7= 1/5+1/6+1/5+5/6= 4/7-(2/5+1/7)= 1/3+7/11+2/3+4/11= 3/5+1/8+1/5= 2/3-(1/7+1/3)= 5/6-(1/5+1/6)= 3/7+3/4+6/7+3/4= 2/3-(1/12+1/3)-1/12= 9/10-3/16-9/16= 1/2+3/5+1/2-1/5= 1/2+1/5-1/2+4/5= 1/2+2/3+2/3= 8/9-(1/6+2/9)= 3/4-1/5-1/5= 2/3-(1/8+1/3)-1/8= 2/3+4/5+2/3-4/5= 7/20-1/4-1/20= 15/16+4/5-3/16+4/5= 5/6-(2/7+1/6)-1/7= 1/8+4/5+5/8-3/5= 6/7-(4/7+1/7)= 1/4+2/3+1/4-2/3= 2/3+7/9+2/3= 5/9+1/3+7/9-1/3= 10/19+1/10+9/19= 2/9+3/5+3/5= 5/8-2/7-1/8= 1/2+2/3+1/3= 7/18+2/3+1/18= 1/7+1/2+1/2+4/7= 2/7+3/4+3/7+3/4= 6/7-(1/3+1/7)-1/3= 2/3-1/12-1/3= 1/3+7/10+2/3+1/10= 2/3-1/5-1/3= 1/8+11/14+7/8+5/14= 2/7+5/6+5/6+3/7= 6/7-(1/3+1/7)-1/3= 6/7+1/2+3/7-1/2= 7/10+5/8+3/10= 2/3+1/4+2/3-1/4= 1/3+5/16+1/3+1/16= 1/9+2/3+2/9+2/3= 12/13-1/3-1/3= 2/5+2/3-2/5+2/3= 1/4+2/7+3/7= 3/4+3/10+1/4+1/10= 5/7-1/2-1/7= 1/9+3/5+4/5= 7/10-(1/10+3/10)-1/10= 7/12+4/7-7/12+6/7= 2/3-(2/7+1/3)= 2/3+2/9+2/3= 1/6+7/9+1/9= 2/3-2/9-1/3= 1/3+3/5+2/3+2/5= 2/5+1/2+1/5= 1/3+2/5+1/5+2/3= 8/9+4/5-1/9+3/5= 1/3+1/4-1/3+3/4= 3/4-1/3-1/4= 5/7-(1/8+2/7)-1/8= 3/4-(5/13+1/4)= 17/20-(1/4+11/20)= 1/3-1/10-1/10= 1/7+5/8+2/7= 6/7-1/3-1/3= 3/4+1/4-3/4+1/4= 1/9+3/4+5/9= 2/7+1/5+2/5= 3/4+4/5+1/4-2/5= 1/2+5/9+1/2= 1/3+1/2+1/3+1/2= 1/3+3/4+1/4+2/3= 7/8-(1/5+3/8)-1/5= 6/7-1/5-3/5= 4/5+1/4+4/5+3/4= 1/3+1/5-1/3+2/5= 1/3+3/5-1/3+1/5= ]