56分之9乘于57等于什么?
问题描述:
56分之9乘于57等于什么?
答
56分之513
答
56分之9乘于57
=9/56×(56+1)
=9/56×56+9/56
=9+9/56
=9又9/56
答
=9/56×(56+1)
=9/56×56+9/56×1
=9+9/56
=9又56分之9