The corresponding fraction is 5500/6000 = 11/12 in the simplest
form.
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The form 5500 is a special disclosure tool for the Department of
Labor. It's a really important disclosure plan document for
recipients who have jobs.
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Employers that maintain a qualified retirement plan must file an
IRS Form 5500-Annual Return/Report of Employee Benefit Plan. Form
5500 is due on the last day of the seventh month following the end
of the year.