<PRE><B>Question 761854</B>
If she uses 2/3 of it, she has {{{ 1 - 2/3 = 1/3 }}}
of it left
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3 1/2 yds = {{{ (2/2)*3 + 1/2 = 6/2 + 1/2 }}}
{{{ 6/2 + 1/2 = 7/2 }}}
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She has 1/3 if this number of yds left, so
{{{ ( 1/3 )*( 7/2 ) = 7/6 }}} yds
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{{{ 7/6 = 6/6 + 1/6 }}}
{{{ 6/6 + 1/6 }}} = 1 1/6 
She has 1 and 1/6 yds left
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check:
{{{ 7/6 + (2/3)*( 7/2 ) = 7/6 + 14/6 }}}
{{{ 7/6 + 14/6 = 21/6 }}}
{{{ 21/6 }}} = 3 3/6 
3 3/6 = 3 1/2
OK </PRE>