Question

4) A meteorologist found that the rainfall in Fairfax during the first half of the month was

1 1/15 inches. At the end of the month, he found that the total rainfall for the month was 3
inches. How much did it rain in the second half of the month?
4) Write your answer as a fraction or as a whole or mixed number.

Answer 1

To find the amount of rainfall in the second half of the month, we need to subtract the rainfall in the first half from the total rainfall for the month.

Total rainfall for the month = 3 inches
Rainfall in the first half of the month = 1 1/15 inches

To subtract the fractions, we need a common denominator. The common denominator for 15 and 1 is 15.

1 1/15 = (15/15) + (1/15) = 16/15

Now we can subtract:

3 - 16/15 = 45/15 - 16/15 = 29/15

Therefore, it rained 29/15 inches in the second half of the month.

Answer 2

Explanation:

To find out how much it rained in the second half of the month, we can subtract the rainfall during the first half from the total rainfall for the entire month.

Total rainfall for the month = 3 inches

Rainfall during the first half = 1 1/15 inches

To subtract these two values, we need to convert 1 1/15 to an improper fraction.

1 1/15 = (15 * 1 + 1) / 15 = 16/15

Now, let's subtract:

Total rainfall for the second half = Total rainfall - Rainfall during the first half

Total rainfall for the second half = 3 - 16/15

To subtract fractions, we need to have a common denominator. The least common multiple (LCM) of 15 and 1 is 15. Let's rewrite the equation with a common denominator:

Total rainfall for the second half = (3 * 15/15) - (16/15)

Total rainfall for the second half = 45/15 - 16/15

Now, we can subtract:

Total rainfall for the second half = (45 - 16) / 15

Total rainfall for the second half = 29/15

Therefore, it rained 29/15 inches in the second half of the month.