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
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
7 - 4.75 = 2.25 = 2 and 1 over 4.
4/7 minus 1/6 = 17/42
7/11 − 1/4 = 17/44
It is 7/8 minus 1/4 = 5/8
7/20
7/12
5/8