Question

I dont understand please help

Answer 1

`2 (1)/(2)+(-2(1)/(4))`

This is equal to:

`2(1)/(2)-2(1)/(4)`

When you add a negative number, it turns into subtraction.

First, I would change it to mixed numbers:

`(5)/(2)-(9)/(4)`

Now, you need to change the denominators to make sure they are the same on both fractions. I changed the first fraction's denominator to 4 so they match. You can do this by multiplying the numerator by 2:

`(10)/(4)-(9)/(4)`

Now, you simply subtract:

10-9=1

1/4 is your answer.

I hope this helps :)