Final answer:
To find out how many grams of butter were used, multiply the total amount of butter by the fraction used. In this case, the answer is 80 grams.
Step-by-step explanation:
To find out how many grams of butter were used, we need to multiply the total amount of butter by the fraction representing the amount used. The fraction used is 2/15.
So, we can calculate it as:
- Multiply the total amount of butter (600g) by the numerator of the fraction used (2): 600g * 2 = 1200g.
- Divide the result by the denominator of the fraction used (15): 1200g ÷ 15 = 80g.
Therefore, 80 grams of butter were used.