What is the common denominator

Mathematics

2 answers:

8_murik_8 [283]3 years ago

8 0

Answer:

D) ab

Step-by-step explanation:

1/a + 1/b

To find the common denominator, we have to multiply denominators.

Here the denominators are "a" and "b"

Multiplying them, we get

ab.

The common denominator is ab.

Answer: D) ab

Hope this will helpful.

Thank you.

WITCHER [35]3 years ago

6 0

The best way to add two fractions with two different variables in the denominator is to use both variables multiplied together as the common denominator. Then multiply each numerator with the variable that, that fraction is missing specifically. In other words, I believe it is:

$ab$

You might be interested in

From where Kiana is standing, she must look up at a 50° angle to see the top of a building. If she backs up 50 feet, she will ne

Morgarella [4.7K]

For this case, what we must do is solve the following system of equations:
tan (50) = h / x
tan (40) = h / (x + 50)
Solving the system we have:
(x + 50) * tan (40) = h
(x) * tan (50) = h
Matching:
(x + 50) * tan (40) = (x) * tan (50)
Rewriting:
x (tan (50) - tan (40)) = 50 * tan (40)
x = 50 * tan (40) / (tan (50) - tan (40))
x = 118.9692621
Substituting:
h = (x) * tan (50)
h = (118.9692621) * tan (50)
h = 141.7820455
Answer:
The height of the building is:
h = 141.7820455 ft

5 0

2 years ago

Read 2 more answers

Which of the following is not true for adding mixed numbers?

chubhunter [2.5K]

1.which of the following is not true for adding mixed numbers?

A.the denominators of the fractions must be the same in order to add them.

B.you can add mixed numbers by changing them into improper fractions or by using a number line.

C.the sum of the mixed numbers written as an improper fraction is in simplest form.

D.the sum of the mixed numbers must be written in simplest form

The answer is C

5 0