easy math - please help ;)

If you are making 2/4 of the recipe, you multiply 2/3 by 2/4.
2/3×2/4=4/12=1/3
If you are making 2/4 of the recipe, you need 1/3 cups of sugar.
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Answer:
4/12 cups
Step-by-step explanation:
The amount needed is the product of the recipe amount and the amount of a recipe that is being made.
(2/3 cup/recipe)(2/4 recipe) = (2·2)/(3·4) cups = 4/12 cups
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The fraction can be reduced to 1/3 cup, but we're told not to reduce it.