6 1/2
There are NO whole numbers at all between 6 and 7!
Between 6 and 7 6 x 6 = 36 7 x 7 = 49
The integers -7 and +7.
There aren't any digits between 6 and 7 that are divisible by 4. There aren't any whole numbers between 6 and 7, period.
5/7
Not sure about a gf, but GCF(6, 7) = 1.
Between 6 and 7 6 x 6 = 36 7 x 7 = 49
. (6<6.7<7)
1
6.5
6
51/70