change the denominators to be the same, as you would for addition, so if you have 1/2 minus 1/4 - change the 1/2 to be 2/4 (denominators are the same) to do this multiply denominator by a number that...
example: 3/4+3/8=? First find a common multiple: 8 then make sure the denominator for each is 8. To do that for the first fraction you have to multiply the denominator by 2...and whatever you do to...
They are called unlike fractions. To add or subtract them, you have to change them to forms that have the same denominator.Example: Add 1/3 and 3/41/3 x 4/4 = 4/12 equivalent fraction1/4 x 3/3 = 3/12...
Simple. If you find that one of the denom. goes into the other one, evalute them so the denom. are the same and their numerators are possibly different. Example: 7/42 + 3/63/6 = 21/4221+7=28ANSWER:...