Nick wants to write a fraction multiplication problem as an addition problem. What shows the correct way Nick can do this work? (1 point)

Fractions

1 answer

To express a multiplication of fractions as an addition problem, Nick can use the concept of logarithms. However, in a more straightforward educational context, we can relate the multiplication of fractions to an addition problem in the context of finding a common denominator.

For example, let's take two fractions, \( \frac{a}{b} \) and \( \frac{c}{d} \). When we multiply these fractions:

\[ \frac{a}{b} \times \frac{c}{d} = \frac{a \cdot c}{b \cdot d} \]

To express this as an addition problem, we can use the idea that multiplication can be viewed as repeated addition in certain contexts. While we can’t directly convert this multiplication to a simple addition involving the same values, we can use the relationship between fractions.

However, if Nick is looking to represent the product of two fractions as an addition of fractions, he could express the multiplication's result as the sum of a series of multiplied values, based on a common denominator or common factor approach.

For example, \( \frac{1}{2} \times \frac{3}{4} \) can represent the process of finding the areas of shapes or parts of a whole, which can then be added or combined in context.

  1. Introducing a Common Denominator Approach: To illustrate \( \frac{a}{b} \times \frac{c}{d} \):

    \( \frac{a \cdot c}{b \cdot d} \) indicates how many parts of a whole (after multiplication) can be expressed as parts involved in addition:

    \[ = \frac{a}{b} + \frac{a}{b} + \ldots + \frac{a}{b} \text{ (c times)} \quad \text{(if c is whole)} \]

    • This isn’t a direct representation of \( \frac{a}{b} \times \frac{c}{d} \) but gives a conceptual way to think about multiplication through repeated addition.

In summary, while there's no straightforward way to directly convert fraction multiplication into an addition format — we can understand that multiplication of fractions ultimately involves a sum of parts based on the relationships between numerators and denominators. Nick could apply this thought process in a broader understanding or illustrative method suitable for teaching fractions.