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4 years ago

What are the steps for adding two fractions that have the same signs?

Mathematics

2 answers:

rewona [7]4 years ago

4 0

You add the top two numbers and denominator stays the same

Alexeev081 [22]4 years ago

3 0

Answer:

You add the top numbers together and keep the denominator the same if the denominator is already both the same. If not, make sure the denominatoris the same first

Ex: 3/4+6/8=6/8+6/8=12/8=1 4/8=1 1/2

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Which is true about the degree of the sum and difference of the polynomials 3x5y – 2x3y4 – 7xy3 and –8x5y + 2x3y4 + xy3?

tankabanditka [31]

Answer:

The option " The sum has degree of 6 , but the difference has a degree of 7 " is correct.

Step-by-step explanation:

Given that the sum and difference of the polynomials $3x^5y-2x^3y^4-7xy^3$ and $-8x^5y+2x^3y^4+xy^3$

<h3>Now sum the given polynomials :</h3>

$3x^5y-2x^3y^4-7xy^3+(-8x^5y+2x^3y^4+xy^3)$

$=3x^5y-2x^3y^4-7xy^3-8x^5y+2x^3y^4+xy^3$

$=-5x^5y+0-6xy^3$

$=-5x^5y-6xy^3$

Therefore $3x^5y-2x^3y^4-7xy^3+(-8x^5y+2x^3y^4+xy^3)=-5x^5y-6xy^3$

In the simplified <u>sum of the polynomials</u> $-5x^5y-6xy^3$ we have <u>the degree is 6</u>

<h3>Now difference the polynomials </h3>

$3x^5y-2x^3y^4-7xy^3-(-8x^5y+2x^3y^4+xy^3)$

$=3x^5y-2x^3y^4-7xy^3+8x^5y-2x^3y^4-xy^3$

$=11x^5y-4x^3y^4-8xy^3$

Therefore $3x^5y-2x^3y^4-7xy^3-(-8x^5y+2x^3y^4+xy^3)=11x^5y-4x^3y^4-8xy^3$

In the simplified <u>difference of polynomials</u> $11x^5y-4x^3y^4-8xy^3$ we have <u>the degree is 7</u>

Therefore the option " The sum has degree of 6 , but the difference has a degree of 7 " is correct

6 0

3 years ago

Read 2 more answers

Evaluate ab-0.5bab-0.5ba minus 0 point 5,b when a=1a=1a equals 1 and b=5b=5

schepotkina [342]

Answer:

$2.5$

Step-by-step explanation:

We want to evaluate $ab-0.5b$ when a=1 and b=5.

We just have to substitute the value of a and b into the given expression and simplify.

$(1)(5)-0.5(5)$

This simplifies to:

$5-2.5$

This will finally give us;

$2.5$

8 0

4 years ago

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What is the volume of the prism?

anygoal [31]

Answer:

78.75 cm cubed

Step-by-step explanation:

To find the volume of the prism, use the formula V = l*w*h where l = 4.5, w = 5 and h = 3.5.

So the volume is V = 4.5*5*3.5 = 78.75

7 0

4 years ago

What is the value in the figure above?

Elan Coil [88]

Answer: i can’t read it could try upload it again

Explanation: Henlo :3

6 0

3 years ago

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What is the value of 2/11 divided by 3/11? *<br> 5 points<br> 6/121<br> 2/3<br> 3/2<br> 121/6

Tema [17]

Answer:

the answer is 2/3

Step-by-step explanation:

(2/11)/(3/11)=2/3

5 0

3 years ago

Read 2 more answers