<PRE><B>Question 1076835</B>
4 3/4 -1/2 for lunch=4 1/4
subtract 2(1/3)=2/3 from 4 1/4
Can make it 4 3/12-8/12, using the common denominator of 12.  Borrow 5 from 12/12, and it is 3 7/12.
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Subtracting 2/3 from 4 1/4
Go the other way.
from 2/3 to 1 you need 1/3
From 1 to 4 you need 3
from 4 to 4 1/4 you need 1/4
3 +(1/3)+(1/4)=3 (4/12)+(3/12)=3 (7/12)</PRE>