Pearson Algebra 1 Common Core, 2011
PA
Pearson Algebra 1 Common Core, 2011 View details
5. Adding and Subtracting Real Numbers
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Exercise 27 Page 34

When adding or subtracting fractions, we have to make sure that their denominators are the same.

-3

Practice makes perfect
When adding or subtracting fractions, we have to make sure their denominators are the same. In this situation, this is already the case so we can subtract the fractions without any manipulation.
1/2+(-7/2)
1/2-7/2
1-7/2
-6/2
-3