Final answer:
To find out how much more it snowed yesterday than today, subtract the amount of snow that fell today from the amount that fell yesterday. Yesterday, it snowed 4 feet, and today it snowed 1/5 of a foot. Therefore, it snowed 3.8 feet more yesterday than today.
Step-by-step explanation:
To find out how much more it snowed yesterday than today, we need to subtract the amount of snow that fell today from the amount that fell yesterday. Yesterday, it snowed 4 feet, and today it snowed 1/5 of a foot.
To subtract fractions, we need to have a common denominator. In this case, the common denominator is 5. So, 4 feet is equal to 20/5 feet, and 1/5 of a foot is equal to 1/5 feet.
We can now subtract: 20/5 feet - 1/5 feet = 19/5 feet.
Therefore, it snowed 19/5 feet or 3.8 feet more yesterday than today.