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
pentagon [3]
3 years ago
6

Least common denominator of 7/9 and 2/3

Mathematics
2 answers:
ser-zykov [4K]3 years ago
8 0
First of all, we need to think what is the Greatest Common Factor of 3 and 9.

The answer is 3 because both sets of factors have the highest factor of 3.

Next we have to multiply the Greatest Common Factor to 3. So, 3 x 3= 9.

The answer isn’t just 9, your answer can be in fractions, I heard this saying when I was in middle school, “Whatever you do to the bottom, you have to do it to the top”.

If we follow that saying, we can get our answer. So 3 was what we were multiplying by to get 9, so we have to do it to the numerator.

7x3= 21, But sometimes they trick you, you cannot do 7x3 because the denominator is the LCD, (Least Commen Denominator”.

So that answer is the same, 7/9.

The saying we used before has to go into our next problem, 3 was the number we used to multiply, so we will multiply 2 by 3 and 2 by 2.

2 x 2= 4
2 x 3= 6

For that equation, the answer is 4/6.

So we learned that to solve this problem, we need to use Greatest Common Factor, Multiplication for basic problems, and Least Common Denominator.

We also learned how to find the answer and it showed us what to do Step by Step.

For anymore information, please ask me in comments below and I would be glad to help, I also recommend if your busy, ask your teacher of guidance counselor or any adult that has at least a high school diploma.

Thank you for asking, we appreciate it and we love to help you even more!

Have a great evening everyone and stay Brainly! :))
Margaret [11]3 years ago
7 0

Answer: 9

Step-by-step explanation: The common denominator will be the least common multiple for the two denominators.

To find the least common multiple or <em>lcm</em> of 3 and 9, begin by listing the first few multiples for each number.

<u />

<u>Multiples of 6</u>

1 × 9 = 9

2 × 9 = 18

3 × 9 = 27

Notice that we skipped 0 × 9 in our list of multiples. That's because 0 × 6 is 0 according to the zero property of multiplication and our least common multiple can't be 0.

When listing the multiples of 3, it's a good idea to keep an eye on the list of multiples for 9 so that we will notice when we find a least common multiple.

<u>Multiples of 3</u>

1 × 3 = 3

2 × 3 = 6

3 × 3 = 9

Notice that in both lists, we have the least common multiple which is 9.

Therefore, the least common denominator of 9 and 3 is 9.

You might be interested in
What is the volume, in cubic ft, of a rectangular prism with a height of 3ft, a width of 8ft, and a length of 6ft?
postnew [5]
<h3>- - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - </h3>

➷ volume = length x width x height

volume = 6 x 3 x 8

volume = 144 cubic ft

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

6 0
3 years ago
Read 2 more answers
The length of a rectangle is one inch less than three times its width. If the perimeter of the rectangle is 118 inches, find the
IgorLugansk [536]
We can set up the width a X and, from the description the length would be 3X-1. The perimeter of a rectangle is determined by 2XL + 2Xw. Plugging into the equation 2(3X-1) + 2(X) = 118. Next distribute to get 6X-2 + 2X = 118. Combine like terms to get 8X = 120. Divide by 8 to get X = 15. The width is 15. The length is 3(15)-1 or 44. 88 +30 = 118
6 0
3 years ago
The following formula models the number of prison inmates, P, in thousands, who are in U.S prisons x years after 1980.
MariettaO [177]
2X^2+22x+318=1270
2x^2+22x-952=0
x^2+11x-476=0
(x+28)(x-17)=0
x=17
7 0
3 years ago
What percent of $150 is $87
vesna_86 [32]
87/150=0.58
0.58*100=58

$87 is 58% of $150

Good luck!
8 0
3 years ago
Read 2 more answers
Distance, Midpoint, Circles - What is the equation of the circle? WILL GIVE BRAINLIEST!
elixir [45]

Answer:

(x-4)^2 + (y-3)^2 =8

Step-by-step explanation:

The midpoint of the diameter is (6+2)/2= 4, (5+1)/2 = 3

(4,3)

The radius is the distance from the midpoint to an endpoint

This is 2sqrt(8)

So the equation is

(x-4)^2 + (y-3)^2 =8

5 0
3 years ago
Other questions:
  • How do you convert fractions to decimals?
    8·2 answers
  • Please help!!!!!!!!!!!!!!!!
    9·1 answer
  • A rectangle has a perimeter of 40 in. and a length of 15 in. What is its area?
    8·2 answers
  • If x + 2/7x = 9, then x=
    13·1 answer
  • The temperature is 5°F. By midnight the temperature is expected to drop 15°F. What will the temperature be at midnight?
    12·1 answer
  • (-18)+1+13+(-15)= ?​
    11·1 answer
  • A population of beetles is modeled by the equation b(t) = 3,000 (2)t where t represents the number of weeks since the population
    8·1 answer
  • estimate by rounding to the nearest ten. the find the product 12.93×29.6 The estimate is= The product is=​
    6·2 answers
  • Evaluate the expression 4ab/c2 , where a = 0.1, b = 6.2, and c=−2 .
    6·1 answer
  • Which statement correctly names the congruent triangles and justifies the reason for congruence?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!