to divide mixed numbers you turn them into an improper fraction, and then multiply the reciprocal (the fraction flipped)
ex: 2 3/4 divided by 2 3/4= 11/4 divided by 11/4= 11/4 times 4/11 and then multiply across. so, 11 times 4 =44 and 11 times 4 = 44, so 44/44 then simplify, so 1 is the answer. then how to multiply fractions, is simply multiply across.