Answer:
10g
Step-by-step explanation:
The apple crumble recipe serves 6 people.
Natalie wants to make it so that it serves 2 people.
6/2 = 3
Which means that the original recipe is 3 times of what Natalie wants.
So if you just divide the original recipe by 3, you can get what Natalie wants.
30g / 3 = 10g
Natalie should use 10g of butter.
