Answer:To add the given expressions, −1 1/3 and (−4 2/3), we need to find a common denominator. The denominators are 3 in both expressions, so we don't need to find a new common denominator.
Step 1: Convert mixed numbers to improper fractions.
−1 1/3 is equal to −4/3.
−4 2/3 is equal to −14/3.
Step 2: Add the fractions.
−4/3 + (−14/3) = −18/3
Step 3: Simplify the fraction, if possible.
The numerator, −18, and the denominator, 3, have a common factor of 3. By dividing both the numerator and denominator by 3, we get:
−18/3 = −6/1 = −6
Therefore, the sum of −1 1/3 and (−4 2/3) is −6.