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
mars1129 [50]
3 years ago
13

Plz plz plz help me with this

Mathematics
1 answer:
erica [24]3 years ago
6 0
This question wants you to find a common denominator for the fractions.
This means finding the LCM, least common multiple, for 21 and 9.
This can be done by listing the multiples for each number until they meet at a common one.

9:
9
18
27
36
45
54
63

21:
21
42
63

This means the LCM of 21 and 9 is 63.
So the lowest possible common denominator is 63.

21 • 3 = 63
So you have to multiply the numerator of 2/21 by 3 as well.
2 • 3 = 6
2/21 = 6/63

Now do the same for 1/9.
9 • 7 = 63
Multiply the numerator, 1, by 7.
1 • 7 = 7
1/9 = 7/63

So in the first blanks, you would put 6/63 for what 2/21 is equal to and 7/63 for what 1/9 is equal to.

7/63 is greater than 6/63.
7/63 > 6/63
That means 1/9 > 2/21
So 2/21 < 1/9 is the answer to the last blank.

Hope this helps!
You might be interested in
Complete the table for y=1/5x+1 and graph the resulting line
Gwar [14]
Sorry this is really sloppy but hope this helps!

6 0
3 years ago
Read 2 more answers
Whats 125% as a fraction and a decimal
ZanzabumX [31]
125% as a fraction is 1 25/100 and in decimal form it is 1.25.
5 0
3 years ago
Enter a negative number that is greater than -8
Art [367]

Answer:

-7

Step-by-step explanation:

5 0
3 years ago
A smart phone manufacturer uses 10 ounces of gold circuitry to make 5,200 smart phones. If they made 7,800 smart phones last mon
agasfer [191]

Answer:

Its 19,500

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
En una sala de teatro havian 7 filas 23 sillas cada una acaban de quitar 8 de las sillas ¿cuantas sillas quedan?
LenaWriter [7]

Answer:

Quedan 153 sillas

Step-by-step explanation:

Primero sabemos que en una sala de teatro tenían 7 filas, y en cada una de esas filas habían 23 sillas.

Entonces, originalmente, el número total de sillas es 7 veces 23:

S = 7*23 = 161

Luego sabemos que quitan 8 de esas sillas, entonces el número de sillas que quedan es la diferencia entre el número original de sillas, 161, y 8, que nos da:

S = 161 - 8 = 153

Quedan 153 sillas

6 0
2 years ago
Other questions:
  • The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).21,42,84,...Find the 7th term.
    5·2 answers
  • What is the answer and work shown for 9r+r+7b+10+b+r+4n
    5·2 answers
  • Twenty two dollars an hours plus 2.25%
    15·1 answer
  • What is the complete factorization of the polynomial below x^3-2x^2+x-2
    5·2 answers
  • Is the square root of 9 a real number
    10·1 answer
  • Plzzzz help! i will give brainliest 100 points! Let f(x) = 8x3 + 16x2 − 15 and g(x) = 2x + 1. Find f of x over g of x. A. 4 time
    14·1 answer
  • Find the area of the shape below?
    13·2 answers
  • Solve.
    5·1 answer
  • Graph the equation.<br> y =<br> -3/4<br> (2+3)(x + 7)
    5·1 answer
  • Which pattern was created using only the translation of pentagon A?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!