0
If the fractions have the same denominator, you can add and subtract them by adding or subtracting the numerator. For instance 2/7 + 3/7 = 5/7
Or 7/9 - 2/9 = 5/9
When the denominators are not the same, you need to multiply both top and bottom of the fractions until the denominators are the same. For instance, if we wanted to do 1/3 + 2/9, we would need to first multiply top and bottom of the first fraction by 3, which makes the question 3/9 + 2/9. Once the denominators are the same, the subtraction or addition can be completed as outlined in the first paragraph.
Still curious? Ask our experts.
Chat with our AI personalities
Devin
Vivi
RossAdd your answer:
Earn +20 pts
How do you add and subtract dissimilar fractions?
Make the fractions equivalent then subtract
How do you add the dissimilar fraction?
You have to convert them to equivalent similar fractions (fractions with the same denominator) first.
How do you add or subtract radicals with similar and dissimilar radicands?
See related link.
What is the meaning of addition and subtraction of similar fraction?
Similar fractions are fractions with the same denominator. In order to add or subtract fractions they need to be similar.
How can you add similar and dissimilar fractions?
Adding similar fractions is easy, but adding dissimilar ones requires an additional step. Before you begin, you must know a few important key terms. First, the number on the top of a fraction is called the numerator, while the number on the bottom of a fraction is called the denominator. Similar fractions have the same denominator, also called a common denominator. To add dissimilar fractions (fractions with different denominators), you must first convert the fractions so that the denominators are the same.
