To express a fraction multiplication problem as an addition problem, Nick needs to use the concept of logarithmic properties or the idea of adding fractions. However, without a specific fraction multiplication problem provided, I can't give an exact response. Here’s a general approach:
For two fractions, say \( \frac{a}{b} \) and \( \frac{c}{d} \), the multiplication \( \frac{a}{b} \times \frac{c}{d} \) can be rewritten in terms of addition using logarithms (for example, \( \log(\frac{a}{b}) + \log(\frac{c}{d}) = \log(\frac{a \cdot c}{b \cdot d}) \)).
Or another method would be to find a common denominator and rewrite the fractions.
If you can provide the specific multiplication problem, I could assist you further with how to express it as an addition problem!