can you add fractions with unlike denominators? if so what do you have to do.

Answers

Answer 1

If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators.

To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.


Related Questions

Factorise
x2 - 9x - 36

Answers

Answer:

-7x - 36

Step-by-step explanation:

x X 2 - 9 x X - 36

2x - 9x - 36

Answer:

( x + 3 ) ( x - 12 )

Step-by-step explanation:

x^2 - 9x - 36

= x^2 + 3x - 12x - 36

= x ( x + 3 ) - 12 ( x + 3 )

= ( x + 3 ) ( x - 12 )

I just need the answers

Answers

Answer:

Sana makatulong

[tex]\sqrt{25} =5[/tex]

Answers

This is correct, since 5•5 =25. So the square root of 25 would be 5.
yh that’s correct 5x5=25

Today every thing at a store is on sale. The store offers a 20% discount. Write an equation to represent how much someone would pay

Answers

Answer:

P=0.8x

This is because 1-0.2=0.8

3.Using the picture at the right, write the theorem that proves lines are parallel.
PI
a. If 21 = 26, then 1||m based on
b. If 23 + 25 = 180, then 1||m based on

Answers

Answer:

2d=180based on the 3d parallel =to 0xyc⁶=12(0)

What is the tangent ratio of angle xº?

Answers

Answer:

option number 2

gfud lzygochcivobisufiblvi

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Here's the Solution :

Using Trigonometry,

[tex] \tan(x) = \dfrac{6}{8} [/tex]

340,250 rounded to the nearest thousand?

Answers

Answer:

340,000

Step-by-step explanation:

Answer:

340,000

Step-by-step explanation:

in 340,250, you would round down because the 2 in ,250 is less than 5, and you can only round up if the number is more than 5.

parallel to y = -2/5 and passes through 2, -8

Answers

Answer:

y = -8

Step-by-step explanation:

When y = -2/5, the slope is 0.

Seeing this, we can make the equation the same as the y-value of the point given.

Hence,

y = -8

Feel free to mark this as brainliest! :D

The answer to this question is =-8

please answer the 5 Question please ASAP
you will get Brainlist are you guy not answering my Question :( :( :p

Answers

Answers:

3y + x >_ 10

Graph D

-2y > 8x + 4

-2y + 2x >_ 7x + y + 5

3y + x < -x - y - 8

3 In a class of 52 students, 16 are science students. If I of the boys and I of the girls are science students, how many boys are in the class?​

Answers

Answer: So group 3 of 16 contains 2 are boys . Means 16 +16 are tow groups are of boys. Then remaining 16 are girls. It completed the all conditions. 2/3 class retio. Total 48 students and 16 girls.

Step-by-step explanation:

Hope this helps!

HELP asap pleasee
The coordinates of the vertices of the triangle shown are P(-7, 6), Q(5,-4), and R(-7, 4). Which measurement is closest to the length of PO in units? es A) 14.4 units B) 14.8 units 15.2 units D) 15.6 units​

Answers

Step-by-step explanation:

the length of PQ =

√(-7-5)²+(6+4)²

=√(-12)²+(10)²

= √144+100

=√244

= 15.6 units (D)

Is (1,-4) a solution to the equation y=-2/?
A yes
В. no

Answers

Answer: B.no

Step-by-step explanation:

To figure this out, plug (1, -4) into the equation y=-2x. 1 is the x value, so we plug it into the x. -4 is the y value, so we plug it into the y spot. In the end we get -4=-2(1). Is this true? No, it isn't. Therefore it is not an answer

use the equation below to find y,if m=4,x=5, and b=9. y=mx-b

Answers

Step-by-step explanation:

Y=4(5)-9

=11

you must follow the formula given

Answer:

y=11

Step-by-step explanation:

y=mx-b

mx-b=y

4 * 5 - 9 = y

20 - 9 = y

11 = y


Error Analysis Jessie incorrectly said the rate
1/6 / 1/24
can be written as the unit rate
gallon
1/144
pound per gallon. What is the correct unit rate? What was Jessie's likely error?

Answers

Answer:

4

Step-by-step explanation:

she multiplied 6x24, got 144 and said 1/144

Between which two values is the square root of 75?

Answers

Answer:

Between 8 and 9

Step-by-step explanation:

Square root of 75 is 8.66025403784

At 12 noon if the temperature is 38°C and if it decreases at the rate of 2°C per hour, then what would be the temperature at 5pm?​

Answers

Answer:

38-2(5) = 28

So the temperature would be 28 degrees celsius

Answer: Teperature at 5PM will be 28°C

Ok so at 12 its 38°C

And it dcreases at 2°C an hour, we need to find the teperature at 5 o clock.

The number of hours between 12 and 5 mutiplied by 2 will give us the trail in temperature and then subtracting the trail i temperature witht the temperature a 12 will give us the teperature at 5 o clock.

SO,

hours between 12 PM and 5 PM is 5 hours

As, the temperature decreases at a uniform rate of 2°c per hour

⇒5×2°C

⇒10°C

Now the temperature at 5 PM will be 38°C-10°C=28°C

I need this problem solved ASAP. Thank you!

Answers

There is no problem to solve in your picture

HELP NEEDED ASAP Question: Use the Pythagorean Theorem to find the distance between the points (1, 4) and (-5, -4) on the coordinate plane. (please give answer and explanation)​

Answers

Step-by-step explanation:

the distance between the points (1, 4) and (-5, -4) on the coordinate plane =

√(-5-1)² + (-4-4)²

=√(-6)²+(-8)²

=√36+64

=√100

= 10 units

Pls help me will pay $

Answers

Answer:

1.2 or 1.22 (Doesn't matter)

Step-by-step explanation:

Ramiro rode his bike for (1 1/2 ) miles in 1/7 hour. The number of miles Ramiro biked in 1 hour is?
1/5 miles
5 miles
10.5 miles
9.5 miles

Answers

The answer is 9.5 miles

Divide: 83.5 ÷ 6.25 The first step in solving 83.5 ÷ 6.25 is to multiply the divisor and dividend by . The new division problem is .

Answers

I believe it is 13.36

Answer:

1: B

2: C

(I need 20 characters so bla bla bla bla bla bla bla)

Airfare from Atlanta,GA to Nashville,TN was decreased from $250 to $180.By what percentage did the cost of the airfare change?

Answers

Answer:

percentage cost of airfare change= (difference in cost / original cost )×100

% age = (250-180/ 250) ×100

=70/250 ×100

7000/250

= 28%

Find the domain and range of each function

Answers

Answer:

Loading,please wait...

Step-by-step explanation:

HI PLEASE ANSWER BEFORE 12:00a.m. EST

Answers

Answer:

D

Step-by-step explanation:

Amanda's unit rate would be

s=50m

while Mary's is

s=60m

60-50 is 10, meaning the answer would be D.

Mary saves $10 more than Amanda every month.

Hope this helps! :)

Hi there!

We can find an equation that models Amanda's savings using the equation:

y = km, where:

k = rise / run (Amount/months)

Plug in a set of values from the table:

k = 100/2 = 50

y = 50m

We know that Mary saves y = 60m dollars a month, so we can determine the correct comparison by plugging in a value of 1 month into both equations:

Amanda:

y = 50(1) = $50

Mary:

y = 60(1) = $60

The difference between Mary's and Amanda's savings is $60 - $50 = $10, so each month, Mary saves $10 more than Amanda.

The correct answer is D.

help if your good at maths ​

Answers

Answer:

[tex]\frac{1}{p-s}[/tex]

Step-by-step explanation:

[tex](p+s)(p^2-s^2)^{-1}[/tex]

[tex](p+s)\frac{1}{(p^2-s^2)}[/tex]

[tex]\frac{p+s}{p^2-s^2}[/tex]

[tex]\frac{p+s}{(p+s)(p-s)}[/tex]

[tex]\frac{1}{p-s}[/tex]

(-3/4) (-4/7) (-2/3) = ??

(-2/3) (-3/4) (4/5) = ??

(2/3) (-9/10) (5/6) = ??

answer has to be a fraction

Answers

Answer:

Step-by-step explanation:

2/5 và -1/2

Use calculator! And see if the answer is correct
I am finding trouble in it tooo

Determine the Area of the triangle. Round to the nearest TENTH.

Answers

Answer:

57.1 sq in

Step-by-step explanation:

Answer:

Area = [tex]57.1cm^{2}[/tex]

Step-by-step explanation:

[tex]\frac{(10cm)(12cm)sin(72)}{2}[/tex]

= 57.1cm^2

HELPPP MY MATH HOMEWORK!!!

Answers

D and then A I would say

I dont know how to answer number 12 but number 13 is the first one 3x + 15 = 17


Order|2.25|| –1,5), 2, 2, and -2 from least to greatest.
.

Answers

Answer:

-2, -1 ,2 ,2 ,2.22.25 that's the answer

What is the LCM for 12 and 14 step by step Ladder method or factors method

Answers

12, 24, 36 , 48, 60, 72, 84

14, 28, 42, 56, 70, 84
The LCM is 84
The LCM for 12 and 14 would be 2

1. 12|14
2. 6 | 7
3. 4 | (none)
4. 3 | (none)
5. (none) | (none)
6. 2 | (none)
7. (none) | 2
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