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Anonymous
That depends on whether you are asking about (4/7)-1 or 4/(7-1) (whether the one is in the denominator or is a separate thing.
(4/7)-1 is -3/7
4/(7-1)=4/6=2/3
Wiki User
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death how about 3/28?
3 4/7 minus 1/7 is 3 3/7
7/12 minus 1/3 = 1/4
7/9 minus 3/4 is 1/36
3/4 minus 1/6 is 7/12
7 over 12 minus 1 over 4 = 1 over 3 = 0.33