Answer:
4 1/20
Explanation:
1 4/5 - (-2 1/4) You need the closing bracket.
1 4/5 + 2 1/4
Change to improper fractions.
9/5 + 9/4 Change so that both have the same denominator.
36/20 + 45/20
81/20 which believe it or not is an acceptable answer.
4 1/20 is another acceptable answer