A science experiment calls for ¾ cup of baking powder you have ⅓ cup of baking powder how much more baking powder do you need?

5/12

Step-by-step explanation:

We have to find same denominator for both fractions;

3/4 = 9/12

1/3 = 4/12

9/12 minus 4/12 = 5/12

You will need 5/12 powder more for the experiment.