What is the sum of the fractions? Use the number line to help find the answer.
Three-fifths + (Negative StartFraction 7 over 5 EndFraction
A number line going from negative 2 to positive 2 in increments of one-fifth.
A. Negative 2
B. Negative four-fifths
C. Four-fifths
D. 2
To find the sum of the fractions, we need to add three-fifths and negative seven-fifths.
Starting at 0 on the number line, we move 3 units to the right to represent three-fifths. We then move 7 units to the left to represent negative seven-fifths.
This brings us to the point -4/5 on the number line. Therefore, the sum of the fractions is negative four-fifths.
The correct answer is B. Negative four-fifths.