Find the exact sum or difference.
3. seven-fifteenths + nine-fifteenths + four-fifteenths (1 point)
answers seven-ninths
1thirteen-fifteenths
2two-ninths
1one-third
(7+9+4)/15 = 20/15
What does that reduce to?
umm are you looking for the answer?
I was trying to lead you to the answer, but allowing you to do some of the work yourself.
To find the sum of fractions, you can follow these steps:
1. First, determine if the denominators (the bottom number of each fraction) are the same. In this case, the denominators are all fifteenths, so they are the same.
2. Then, add the numerators (the top number of each fraction) together. In this case, the numerators are 7, 9, and 4.
7 + 9 + 4 = 20
3. Write the sum as a fraction with the common denominator. The common denominator here is fifteenths.
So, the sum is:
20/15, which can be simplified to 4/3.
Therefore, the correct answer is:
1. one-third, which is equivalent to 4/3.