Question 236078
The reciprocal of 4 plus the reciprocal of 7 is the reciprocal of what number?
:
{{{1/4}}} + {{{1/7}}} =
The common denominator, in this case is 4*7, 28:
{{{7/28}}} + {{{4/28}}} = {{{11/28}}}
So it is the reciprocal of {{{28/11}}}