Add or subtract the following mixed numbers. Simplify and reduce when possible.
Problem 1 :
Problem 2 :
Problem 3 :
Problem 4 :
Problem 5 :
Problem 6 :
Problem 7 :
Problem 8 :
Problem 9 :
Problem 10 :
Problem 11 :
Problem 12 :
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM