1 3/4+7/8+1 1/2
Convert all of the mixed numbers into improper fractions
7/4 + 7/8 + 3/2
Multiply until all of the fractions have the same common denominator, in which in this case, is 8.
14/8 + 7/8 + 12/8
Add all of the numerators but NOT the denominators.
Final Answer: 33/8 or 4.125 or 4 1/8 *All answers are equivalent to each other.