Please help with this easy fraction problem. <3

Answer:
107/56 miles further on Sunday
Step-by-step explanation:
biked 139/8 saturday
biked 135/7 sunday
which fraction is greater by finding a common denominato 107/56r
Least common Denominator of 7 and 8 is 56
139x 7/8 x 7= 973/56
135x8/7 x 8=1080/56
1080/56 - 973/56 = 107/56
Therefore he rode further on Sunday further by 107/56 miles