6 of 5/8 / 5/8 – 1/8 = ______?

A. 6 1/8
B. 5 3/4
C. 6 3/4
D. 5 7/8
Explanation:
6 of 5/8 / 5/8 – 1/8
30/8 * 8/5 – 1/8 = 6 – 1/8 = 5 7/8