Question 105385
You can get the answer to this problem by subtracting 1/5, 1/8, and 1/10 from 1 because 1 represents her entire portfolio, thus:
{{{1-1/5-1/8-1/10}}} The LCD here is 40, so:
{{{40/40 - 8/40 - 5/40 - 4/40 = (40-17)/40}}}={{{23/40}}} 
The remainder of her portfolio, {{{23/40}}} is invested in Municipal bonds.
To find the equivalent percentage, you would divide the numerator (23) by the denominator(40) and multiply the result by 100 to get the percent.
{{{23/40 = 0.575}}} Multiply by 100 and add the % sign.
{{{23/40}}} = 57.5%