The first step is to convert each mixed number to improper fraction.
5 5/8 becomes 45/8
2 1/4 becomes 9/4
The expression would be
45/8 divides 9/4
If we interchange the denominator of 9/4 for its numerator, 9/4 becomes 4/9. This is called its reciprocal. This means that the symbol of division would change to multiplication. It becomes
45/8 * 4/9 = 5/2
Converting back to mixed number, it becomes 2 1/2
The answer is 2 1/2