to subtract fractions you have to have a common denominator.
so if i had a problem like 6 -1/3 step 1 would be to turn 6 into a fraction: 6/1 step 2 is to find the common denominator: 6/1 -1/3, in this case it is 3, so you multuply the first term by 3 you would then get 18/3 - 1/3, now all you do if subract numerators, 18-3=15
final answer would be 15/3, you can simplify it into 5/1 which is also 5
