1除以(1/a+1/b)怎样化简
问题描述:
1除以(1/a+1/b)怎样化简
答
=1÷(b/ab+a/ab)
=1÷(a+b)/ab
=ab/(a+b)
1除以(1/a+1/b)怎样化简
=1÷(b/ab+a/ab)
=1÷(a+b)/ab
=ab/(a+b)