To learn how to add rational expressions (that is, polynomial fractions), try this lesson. (If you need to review how to work with numerical fractions, try this review.)My textbook doesn't explain this method and I don't have a teacher so I'm stuck.
(3/8y + 5/6x) / (5/12xy)
The answer is:
(9x + 20y) / 10
I am not sure how to add two fractions that have completely different denominators. How did they do this?
Fractions with variables in the denominators are called "rational expressions". The method for adding rational expressions (that is, polynomial fractions) is exactly the same as for adding numerical fractions.How do I add two fractions that have different pronumerals in the denominator?
Since 1 is not a multiple of and , no, this cannot be the Least Common Multiple.How do I simplify 3/a + 4/b? Would the LCM be 1?