Question

4/5 plus what equals 1/2

Answer 1

Answer:

-0.3

Step-by-step explanation:

4/5 +x= 1/2

0.8+ x= 0.5

-0.8. -0.8

‐--------------------

X= -0.3

Answer 2

Answer:  -3/10

Step-by-step explanation: A positive and a negative will subtract.

1. Find the common denominator (8/10)

2. simce 8/10 is greater than 1/2 you need to add a negative to get 8/10 a lower value

3. subtract 5/10 or 1/2 from 8/10 to figure out what gives you the correct answer