767676分之191919减去1919分之7676等于多少?
问题描述:
767676分之191919减去1919分之7676等于多少?
看的懂就行 注:
答
191919/767676分-1919/(7676/1919) =19*10101/(76*10101)-1919/(76*101/(19*101)) =19/76-1919/(76/19) =1/4-1919/4 =-1918/4 =-479-3/4 191919/767676分-(1919/7676)/1919 =19*10101/(76*10101)-1/(...