计算:-(1又2/3-4又11/12)-(13又11/18+3又1/4)
问题描述:
计算:-(1又2/3-4又11/12)-(13又11/18+3又1/4)
答
-(1又2/3-4又11/12)-(13又11/18+3又1/4)
=-1又2/3+4又11/12-13又11/18-3又1/4
=-1又8/12+4又11/12-3又3/12-13又11/18
=-1又8/12-3又3/12+4又11/12-13又11/18
=-4又11/12+4又11/12-13又11/18
=-13又11/18