1+1999=几

1+1999=几 十二分之十一=几分之几+几分之几+几分之几?1=几分之几+几分之几+几分之几? 12分之1=几分之几+几分之几 1米=几分之几+几分之几=几分之几=几分之几 求：几分之几+几分之几+几分之几=几分之几+几分之几（在1~10之间的,每个数只能填一次） 几分之几=1=几分之几*几分之几=19分之几JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ 在每个算式中填入1/2,1/3,1/6,使等式成立.（几分之几+几分之几）/几分之几=1（几分之几-几分之几）/几分之几=1几分之几/（几分之几-几分之几）=1（几分之几+几分之几）/几分之几=2几分之几+ 5/6-7/12=(1/2+1/3)-(几分之几＋几分之几)=1/2+1/3-(几分之几)- (几分之几)=1/2-(几分之几)=几分之几 1=多少除以多少=几分之几=几分之几=几分之几 4分之3+5分之1=几分之几+几分之几=几分之几 1分钟=几分之几秒? 1除以60=几分之几? 6.28×1/3=几分之几 1ml=几分之几l 1cm2=几分之几dm2 124分=几分之几元=几元?1角=几分之几元?6角=几分之几元=几元?53角=几分之几元?243角=几分之几元=几元?1厘米=几分之几米?8厘米=几分之几米=几米? 1,480/24=几/4=60/几=120/几=几/几,2,几/12=36/4=18/几=几/几=几/几 1999+1等于几