please can you answer this is all about sums and differences of rational algebraic expression...please i need it please ?this is the problem....3/5+4/5=? another x/3-y/3=? another is 7/a+2/a
Certainly! To find the sums and differences of rational algebraic expressions, we need to follow a few steps.
For the problem 3/5 + 4/5, we can simplify it by finding a common denominator. Since both fractions have a denominator of 5, we can add the numerators together and keep the denominator the same. Therefore, the solution is:
(3 + 4) / 5 = 7/5
To solve x/3 - y/3, we still need a common denominator. In this case, both fractions have a denominator of 3. Therefore, the solution is:
(x - y) / 3
Lastly, for 7/a + 2/a, since both fractions have the same denominator of a, we can simply add the numerators together, keeping the denominator the same:
(7 + 2) / a = 9/a
So, the solutions are:
3/5 + 4/5 = 7/5
x/3 - y/3 = (x - y) / 3
7/a + 2/a = 9/a
Remember, to find the sum or difference of rational algebraic expressions, we need to have the same denominator so that we can add or subtract the numerators.