Question 942538
His rate = ( number of decks built ) / ( his time to build them )
His unit rate = ( 1 deck built ) / ( his time to build 1 deck )
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given:
{{{ (( 3/4 )) / (( 9/2 )) }}} decks/days
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Multiply top and bottom by {{{ 4/3 }}}
{{{ ((( 4/3 )) / (( 4/3 )))*( (( 3/4 )) / (( 9/2 )) ) }}}
{{{ 1 /( (( 4/3 ))*(( 9/2 )) ) }}}
{{{ 1 / 6 }}}
The unit rate is 6 days to build 1 deck