<PRE><B>Question 808133</B>
first make equivalent denominators
4 times 3 is 12
fred uses 4/12 of each cup
janice uses 3/12 of each cup
so together they use up 7/12 of each cup
leaving 5/12 of each cup unused
there are 7 cups so multiply 7 times the unused portion
{{{7(5/12)=x}}}
{{{35/12=x}}} = {{{2}}}and{{{(11/12)}}}
so 2.91666666666666666666... cups of water were not used...what a waste.
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