Let’s assign values to the two cupcakes:

• Pink cupcake = x
• Rainbow cupcake = y

From the first equation:

x + y = 13

From the second equation:

x × y = 42

Now we need two numbers whose sum is 13 and whose product is 42.

The only pair is:

• 6 and 7

Because:

• 6 + 7 = 13 ✅
• 6 × 7 = 42 ✅

However, the puzzle never tells us which cupcake is 6 and which is 7.

That means the final expression cannot be determined uniquely:

• If the pink cupcake = 6 and the rainbow cupcake = 7, then:
  6 ÷ 7 = 6/7 ≈ 0.857
• If the pink cupcake = 7 and the rainbow cupcake = 6, then:
  7 ÷ 6 ≈ 1.167

✅ Final Answer

This puzzle has no unique solution because the values of the two cupcakes are never assigned.

The correct conclusion is that there is not enough information to determine a single answer. 🎯