What is 4 5/8 as an improper fraction?

To convert the mixed number 4 5/8 to an improper fraction, follow these steps:

1. Multiply the whole number by the denominator: 4 × 8 = 32
2. Add the numerator to the result: 32 + 5 = 37
3. The improper fraction is 37/8

So, 4 5/8 as an improper fraction is 37/8.