25 5/8 - 11 5/6 = 13 19/24
Subtracting or adding fractions requires that they have the same denominator. You do this by finding the LCM and cross multiplying, including the numerators. The LCM of 8 and 6 is 24, so the problem becomes 25 15/24 - 11 20/24 = 13 19/24. Since 19 is prime, and 24 is not relatively prime to 19, the solution can not be reduced any further.
44
77
55
88
It is: 220
88...
It is: 1925
132
It is: 1
176
44
33