Answer
(4/3) cups of melted butter = 1⅓ cups of melted butter.
16 oz of marshmallows.
Step-by-step explanation
2 cups of melted butter
24 oz marshmallows
13 cups rice crispy cereal
1 full recipe uses 2 cups of melted butter
(2/3) of the recipe will use (2/3) × 2 cups of melted butter = (4/3) cups of melted butter = 1⅓ cups of melted butter.
1 full recipe uses 24 oz of marshmallows
(2/3) of the recipe will use (2/3) × 24 oz of marshmallows = 16 oz of marshmallows.
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