SOLUTION: Sandy has 4 cups of vinegar in her salad dressing recipe. How much vinegar would Sandy use to make 1/5 of a recipe. I am a grandmother trying to assist my 10 year. Please help!

Question 859054: Sandy has 4 cups of vinegar in her salad dressing recipe. How much vinegar would Sandy use to make 1/5 of a recipe. I am a grandmother trying to assist my 10 year. Please help!
Answer by Awesom3guy(31) (Show Source): You can put this solution on YOUR website!
The whole recipe requires 4 cups of vinegar. If Sandy were to make 1/5 of the recipe, she would need 1/5 (one fifth) of the vinegar necessary for the whole thing.
This is done by dividing 4 cups with 5.
1/5 of 4 cups of vinegar = 1/5 * 4 cups or 4/5 = 0.8
She would need 4/5 or 0.8 of a cup of vinegar.
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