What is 3 1/8 as an improper fraction?

To convert the mixed number 3 1/8 to an improper fraction, follow these steps:

1. Multiply the whole number by the denominator: 3 × 8 = 24
2. Add the numerator to the result: 24 + 1 = 25
3. Write the result over the original denominator: 25/8

So, 3 1/8 as an improper fraction is 25/8.