What is the least common denominator for adding the fractions 4/15, 1/12, and 3/8

Answers

Answer 1

Answer: I think you want the least common multipule (exg LCM of 2,3,4 is 12)

so we find the factors and include all of them so like this

15=3 times 5
12=2 times 2 times 3
8=2 times 2 times 2

so to include all of them we include 3 2's, 1 3 and 1 5 or 2 times 2 times 2 times 3 times 5 or 8 times 15 or 4 times 30 or 120

the LCM is 120

so 4/15=32/120
1/12=10/120
3/8=45/120

add 32/120+10/120+45/120=(32+10+45)/120=87/120

Answer 2

Answer: The least common denominator would be the least common multiple (LCM) of the denominators, 15 12 and 8.

To find the LCM, multiply two of the numbers together and test to see if the third one divides evenly into it.

15 x 8 = 120

120 ÷ 12 = 10

Because all three numbers go evenly into 120 (and 120 is the smallest number for which that is true), the least common denominator would be 120.

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On a number line there are six spaces. On the first is the number 2, on the last space is the number 42, on the third space is x, solve for x.Thanks!

Answers

1st space is 2
6th space (last) is 42
in betwen that is 5 spaces to go
find distance from 2 to 42
42-2=40

40=5 spaces
divide 5
8=1 space
each space goes upby 8

2=1st space
2+8=2nd space
2+8+8=3rd space=18=x

x=18

Determine whether each statement is true or false.Statement
True
False
The expressions b÷4 and 14b are equivalent.
The expressions 5z−z and 3z are equivalent.
The expressions a+b+c and 3a are equivalent.
The expressions 3m+3m and 6m are equivalent.

Answers

False
False
False
False

Answer:

All of them are false.

Step-by-step explanation:

Check my answers PleaseYou are going to the movie theater with your parents and your 8 year-old brother. Adult tickets cost $8, ages 10 -18 cost $7.25 and under age 10 cost $4.25. If you spent an additional $20 on soda and popcorn, what is the total cost of your trip to the movie theater?

(Points : 1)
$11.50
$20.00
$47.50
$28.50

Question 2. 2. Your parents gave you $50 to take your younger brother and sister to the movies. You ticket cost $7.25 and your siblings cost $4.25. If you spent an additional $10 on soda and popcorn, how much money did you bring home with you?
(Points : 1)
$40
$28.75
$22.50
$24.25

Question 3. 3. How much change from $90 would you receive if you bought 5 concert tickets at $16.85 each?
(Points : 1)
$5.75
$9.00
$7.10
$22.60

Question 4. 4. Marta is buying 7 tickets from Ticket Buy at $13.79 each. If the broker charges $2.50 handling per ticket and $9.00 shipping, how much is her total cost?
(Points : 1)
$96.53
$123.03
$159.53
$177.03

Question 5. 5. Tickets to the Planetarium cost $5.25 each and come in a book of 8. How much change will Kenny get from $60 if he buys a book of 8?
(Points : 1)
$18.00
$54.75
$12.00
$11.50

Question 6. 6. Jason has "buy one get one free" tickets to the comedy club. He is bringing 7 people, including himself. If the regular price is $10.25 per person, how much change will he have left from $100 bill?

(Points : 1)
$28.25
$59.00
$41.00
$71.75

Question 7. 7.
Which would cost less and by how much: you and a friend go to Theater Y and you each buy a drink/popcorn combo (tickets are 8.25 each and a drink/popcorn combo is 4.50 each), or you and your friend rent a video for $4.50 and buy a 2 liter of cola ($1.50) and a bag of microwave popcorn ($2.00) to share?
(Points : 1)
Theater Y by $17.50
Home by $17.50
Theater Y by $8.00
Home by $8.00

Question 8. 8. The Movie Fan store rents videos for $3.99 each. You can get a two week movie pass for $20 and rent unlimited movies. If you were going to rent 4 movies in the next two weeks, which is cheaper, separate rentals or the movie pass?
(Points : 1)
separate rentals
movie pass

1.c 2.d 3.a 4.b 5.a 6.c 7.b 8.a Help if you can there simple math problems but I know I got 2 wrong what ones are they??? I know because I took a quiz on them and got 2 wrong I just want to know which ones so I can retake it.

Answers

The correct answers are:
$47.50;
$24.25;
$5.75;
$123.03;
$18;
$59;
Home by $7.50; and
separate rentals.

Explanation:
For the first question:
Your family purchases 2 adult tickets at $8 each; 2*8=16. You then purchase 1 10-18 ticket for $7.25 and 1 under 10 ticket for $4.25. You then purchase $20 in soda and popcorn. This gives us a total of:

16+7.25+4.25+20=47.50.

For the second question:
You purchase your ticket for 7.25 and a ticket for each of your siblings at 4.25, which is 2*4.25=8.50. You then purchase $10 in soda and popcorn. This gives us a total of:

7.25+8.50+10=25.75.

The change will be:
50-25.75=24.25.

For the third question:
5 tickets at $16.85 each would be 5*16.85=84.25.

This gives us
90-84.25=5.75 in change.

For the fourth question:
7 tickets at $13.79 each will cost 7*13.79=96.53.

The handling for all 7 tickets, at $2.50 each, will be 7*2.50=17.50

These together with the shipping charge will be
96.53+17.50+9=$123.03.

For the fifth question:
The book of 8 tickets, which cost $5.25 each, will be 8*5.25=$42.

This will give us
60-42=$18 in change.

For the sixth question:
He has buy one get one free tickets; this means he will buy 3 tickets and get 3 free for the first 6 tickets. He will then need to buy the 7th ticket; this means he will pay for 4 tickets:
4*10.25=$41.

Out of $100, he will have
100-41=$59 in change.

For the seventh question:
The tickets at Theatre Y cost 8.25*2=16.50. Two drink/popcorn combos at the theatre will cost 4.50*2=9. Together, this is 16.50+9=25.50.

The cost of the dvd rental (4.50), soda (1.50) and popcorn (2.00) at home is 4.50+1.50+2=8. This makes staying at home the cheaper option; it is
25.50-8=$17.50 cheaper.

For the eighth question:
4 separate rentals will cost 4*3.99=$15.96. This is cheaper than $20.

What patterns are there in prime numbers

Answers

That they are only divisible by 1 and themselves.
2 divisible by 2 and 1
3 divisible by 3 and 1
5 divisible by 5 and 1

And so on...

Well, prime numbers cannot be divided by any numbers other than 1 and that number.
Some prime numbers are 7, 11, 13, 17, 19, 23, and more.

Composite numbers on the other hand are numbers like 4... They can be divided by 1, their number and other numbers, but in this question you do not need to know that.
Hope this helps.

What two numbers multiply to 16 but add to 17

Answers

The two numbers are 16 and 1.

16+1 =17
16*1 =16

Hope this helps~

The two numbers are 1 and 16... i was confused as well but then i figured it out... it is a very good but tricky question

How do you do transversal of parallel lines??

Answers

Well what you have to do is first you have to create two parallel lines. You just draw a line straight through them to create a ton of angles that correspond with each other. That is basically what transversal parallel lines are.

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