# How do you simplify #(r + 9)/4 + (r - 3)/2#?

In a fraction the top number is the count of what have got. The bottom number is the size indicator of what you are counting.

Write as:

By signing up, you agree to our Terms of Service and Privacy Policy

To simplify (r + 9)/4 + (r - 3)/2, you need to find a common denominator. The common denominator for 4 and 2 is 4. Multiply the first fraction by 1/1 (which is equivalent to 2/2) and the second fraction by 2/2. This gives you (2r + 18)/8 + (2r - 6)/8. Combine the numerators over the common denominator to get (2r + 18 + 2r - 6)/8. Simplify the numerator to get (4r + 12)/8. Finally, simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 4. This results in (r + 3)/2.

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7