5 1/2* 4 1/2

To multiply the given numbers, first convert the mixed numbers to improper fractions:

5 1/2 = (52 + 1)/2 = 11/2 4 1/2 = (42 + 1)/2 = 9/2

Now multiply the fractions:

(11/2) * (9/2) = (119) / (22) = 99/4

Therefore, 5 1/2 * 4 1/2 equals 99/4.