us
Follow the steps in purple to evaluate:
$+(-)
To add or subtract fractions, their denominators
must be the same. In this problem, we can get a
common denominator by multiplying the second
fraction by 3/3.
3 ?]
3
(-ſ).
-
What number belongs in the green box?

us Follow the steps in purple to evaluate To add or subtract fractions their denominators must be the same In this problem we can get a common denominator by mu class=