Weegy: To add and subract fractions you need to add/subtract the top number of one fraction with the top number of the other fraction. For example, 3/4 minus 2/4 is equal to 1/4. [ [ If the bottom number of the fractions are different, you must find the least common denominator. For example, 9/16 minus 2/8 could be rewritten as 9/16 minus 4/16 is equal to 5/16. You multiply the two by two because 8 times 2 is equal to 16. ] ] Expert answered|texasd|Points 10|

There are no comments.