Question

Melissa needs to mix 2 cups of baking soda with 3 cups of vinegar to make a cleaning solution. How many cups of baking soda are needed for each cup of vinegar?

Answer 1

You need 2 cups soda for every 3 cups of vinegar
So all we have to do to calculate for every cup of vinegar is 2/3
2/3= 0.66 of one cup (66% filled)

Answer 2

For 3 cups of vinegar, she needs = 2 cup baking soda
So, for 1 it would be: 2/3 = 0.67 cup

In short, Your Answer would be 2/3 or 0.67 cups

Hope this helps!