Answer:hey must have the same denominator (the bottom value). If the denominators are already the same then it is just a matter of either adding or subtracting the numerators (the top value). If the denominators are different then a common denominator needs to be found.
Step-by-step explanation:
Answer:
I think its c bc (PEMDAS) shoes multiplication comes first
Answer:
Please add a picture!
Step-by-step explanation:
-6.4 – 4(-2.8)
-6.4 – - 11.2 = 4.8
Your answer is B: 4.8
Answer:
it is the middle one
Step-by-step explanation:
i did it