﹙﹚的倒数是0.28,﹣3又7分之3的倒数是﹙﹚
问题描述:
﹙﹚的倒数是0.28,﹣3又7分之3的倒数是﹙﹚
答
﹙﹚的倒数是0.28,﹣3又7分之3的倒数是﹙﹚
1/0.28=25/7
﹣3又7分之3的倒数=1/(-3-3/7)=-7/24