Sour cream contains 20 percent fat as much fat as 450 grams of sour cream.

To solve this problem, we need to make a proportion of 450 grams-100% x grams-20% Find the unknown “x”
1) 450 * 20 = 9000 2) 9000: 100 = 90 grams Can be solved in one action 450 * 20/100 = 90 grams
Answer: 450 grams of sour cream contains 90 grams of fat

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