To turn a multiplication problem involving fractions into an addition problem, Nick can use the property that multiplying fractions can be expressed in terms of their common numerator and denominator. The formula is:
\[ a \times b = \frac{a \cdot b}{1} \]
However, to express this as an addition problem, Nick could also utilize the concept of finding a common denominator or partitioning the multiplication into additive parts.
For example, if he wants to express \( \frac{1}{2} \times \frac{1}{3} \), he could say that:
\[ \frac{1}{2} \times \frac{1}{3} = \frac{1}{6} \]
And he could frame it as adding parts of \( \frac{1}{6} \):
\[ \frac{1}{6} = \frac{1}{6} + 0 \]
Or simply state that multiplication of fractions can sometimes result in expressions that can be grouped or added, although this doesn't always directly convert multiplication into summation.
If you have specific choices provided, please share them so I can help identify which option aligns best with this concept!