Question

4. Subtract the sum of
(-2/3 and -7/9)
from the sum of (8/3 and -5/18 ) .​

Answer 1

Answer: 69/18 (3 and 15/18).

Step-by-step explanation:

Step 1: Find common denominators.

Change the 3 in -2/3 to a 9 by multiplying it with 3. -2/3x3= -6/9

Do the same with 8/3, except use 6. We use a 6 because the 3 needs to be an 18. 8/3x6= 48/18.

Step 2: Find the sums.

A sum is just the answer to an addition problem.

-6/9+(-7/9)= -13/9. 48/18+(-5/18)= 43/18.

Step 3: Subtract both.

We need to change the -13/9 to match the 18. Repeat the process for finding common denominators.

With -26/18 and 43/18, we can subtract. Our expression looks like this:

43/18-(-26/18)

When subtracting negatives, you actually are adding (0-(-1) = 1). Therefore, the answer is 69/18 (3 and 15/18).