3/4 and 4/3. If you are allowed to repeat numbers, infinitely many.
infinate
3/7, 3/9, 3/11, 5/11
5/3
3/4
3/8, 6/16, 9/24
infinate
1/3+2/3=14/4=13/1*1/3=1
3/7, 3/9, 3/11, 5/11
5/3
There are infinitely many possible answers. An easy one is 1/8 and 6/8 = 3/4
There are 15 ways to make 7 using 3 dice.
3/4
There are infinitely many equivalent fractions: one of these is 30/40.
3/8, 6/16, 9/24
5
3 1/2+6 5/8
Improper fractions can't become proper fractions. You can write 13/3 as a mixed number, which is 4 1/3.