Adding and subtracting fractions with unlike denominators?

Answer 1

You have to make your unlike denominators to like. Do that by finding the common factor for each set of fractions. Remember, that what you do with the numerator you do with the denominator ( lets say you want to add 1/2 + 2/4)( divide or multi by the same factor) 1/2 = 1 x2= 2 this makes 2/4 and now you can add 2/4 + 1/4= 3/4 2 x2=4 Hope this helps. It hard to explain online like this.