1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Naddika [18.5K]
3 years ago
12

Express the fractions 1/2, 3/16, and 7/8 with an LCD

Mathematics
1 answer:
12345 [234]3 years ago
6 0
You first need to find the LCD (lowest common denominator). You will need to find the smallest number that is a multiple of all numbers that is the denominator (2, 16, 8). Or, to say it another way, all the numbers in the denominator need to be a factor of this number. 

You can find this by first checking if the largest number that is the denominator-- in this case 16-- is already the LCD, which means 16 is divisible by all the other numbers. 

If this does not work, then multiply all the numbers together to get the LCD-- since you multiplied them together, you know that they will all be factors of the product. 

However, you will be able to see that 16 is indeed the lowest common denominator: 

2 × 8=16 

8 × 2=16 

16 × 1=16 

So, after you find the LCD, multiply both the numerator and the denominator by the number that you would need to multiply the denominator to get the LCD (the whole point is that you want to get the denominator to be the LCD, but to do that you need to multiply both the top and bottom by the same number to keep the fraction the same). 

(1/2) x (8/8)= 8/16 

(3/16) x (1/1)= 3/16 

(7/8) x (2/2)= 14/16

You might be interested in
Ok ok I know I’m gonna ask this again so please ( you do have to get me all the names btw ) I’ll give you brain list
Tomtit [17]

Answer:

                 1. quadrilateral

     2.   kite                  3.   trapezoid    

          4.     parallelogram      5.  isosceles trapezoid    

6.  rhombus   7.  rectangle

       8.  square            

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A garden snail traveled 1⁄40 of a mile in 1⁄2 an hour. What was the speed of the snail?
photoshop1234 [79]
2/40 miles per hour.

Hoped I helped!
3 0
3 years ago
Read 2 more answers
Susie has planned a trip to a city 60 miles away. She wishes to have an average speed of 60 miles/hour for the trip. Due to a tr
Nutka1998 [239]

Answer:

90 mi/h

Step-by-step explanation:

Given,

For first 30 miles, her speed is 30 miles per hour,

Let x be her speed in miles per hour for another 30 miles,

Since, here the distance are equal in each interval,

So, the average speed of the entire journey

=\frac{\text{Average speed for first 30 miles + Average speed for another 30 miles}}{2}

=\frac{30+x}{2}

According to the question,

\frac{30+x}{2}=60

30+x=120

\implies x = 90

Hence, she needs to go 90 miles per hour for remaining 30 miles.

7 0
3 years ago
A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?
VladimirAG [237]

Answer:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

Step-by-step explanation:

For this case we know the population deviation given by:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

4 0
3 years ago
What’s the answer ?
xxMikexx [17]

B 5x+20 hope this helps!!

8 0
2 years ago
Other questions:
  • 6*0.222*7.0. Express your answer numerically using the appropriate number of significant figures.
    5·1 answer
  • How do scientists use a spectroscope to determine a star's composition? A. They study patterns in light bands that are separated
    11·2 answers
  • How do i post a image for my question!!
    12·2 answers
  • Find the value of x.<br>a. 23°<br>b. 124° <br>c. 33°<br>d. 45°​
    9·2 answers
  • 2/3 is what percent of 1/4 ? of 1/6 ? Please help I need the answer immediately. This question is worth 40 points. Please consid
    5·1 answer
  • 4/15 + 7/9 whats the sum
    12·2 answers
  • A teacher aide can use modeling to
    11·1 answer
  • A marine biologist is studying the great Barrier Reef off the coast of Australia she is scuba diving at a depth of 85 below the
    8·1 answer
  • Please help me answer please and actually answer
    14·2 answers
  • Helpppppppppppppppppp
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!