find difference 7 7/8-3 1/4
so first convert to improper fractions7 and 7/8=7+7/8=56/8+7/8=63/83 and 1/4=3+1/4=12/4+1/4=13/4so nowe we have63/8+13/4convert bottom number to samewhich is 813/4 times 2/2=26/8now we have63/8-26/8=37/8=4 and 5/8answer is 4 and 5/8