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Makovka662 [10]
3 years ago
14

How to subtract fractions

Mathematics
2 answers:
irina1246 [14]3 years ago
8 0
Find common denominators soo for example if we had 4/6-1/2
The common denominator would be 6 so
4/6 - 3/6
4-3 is 1 so
The answer would be 1/6
Alex3 years ago
8 0

Answer:

Step-by-step explanation:

If denominators are same, subtract the numerators.For example

6/8-1/8 here denominators for both fractions are same (8)

6-1/8 = 5/8

If denominators are different, find LCM for the denominators.

1/2 - 1/3 .Here LCM for 2 and 3 is 6

1*3/2*3 - 1*2/3*2 = 3/6 - 2/6    { now same denominator 6}

=(3-2)/6=1/6

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A 16-ft ladder is placed 4 ft. from the base of a
Alex73 [517]

Answer:

You have a right triangle.

a^2+b^2=c^2

4^2+b^2=256

16+b^2=256

b^2=256-16

b^2=240

b=sqrt240

b=15.49 ft. ans. for the height of the ladder up the wall.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Use substitution. What is the solution to the system of equations?<br><br> y=1/2x+2<br> 2y=x+4
morpeh [17]

Answer: Infinitely many solutions.

Step-by-step explanation:

y=\frac{1}{2}x+2\\2y=x+4\\

Use \frac{1}{2} x+2 for y in 2y=x+4

2(\frac{1}{2}x+2)=x+4\\x+4=x+4\\x-x = 4-4\\0=0

Infinitely many solutions.

4 0
3 years ago
Help please<br><br>what is ​
RSB [31]

Answer:

sure how can I help you? please tell me

8 0
2 years ago
2. You want to buy some beans. A
Ber [7]

Answer:

Step-by-step explanation:

Remark

If you find out the cost of 1 oz of each of them, that will determine the best buy. The smallest number is the best buy.

Givens

7 oz cost $2.38

15 oz cost $5.25

26 oz cost $8.58

Solution

<h3>7 oz</h3>

7 oz cost $2.38

1 oz cost  x                  This is a proportion. 3 quatities are known. Find x Cross multiply.

7/1 = 2.38/x

7x = 2.38

x = $0.34 dollars

<h3>15 oz</h3>

15 oz cost 5.25

1 oz costs x

15.1/1 = 5,25 x              Cross Multiply

15x = 5.25 * 1               Divide by 15                                

x = 5.25 / 15

x = $0.35

<h3>26 oz</h3>

26 oz cost 8.58

1 oz   cost x

26/1 = 8.38/x                 Cross Multiply

26x  = 8.38                    Divide by 26

x = 8.38/20

x = 0.32 dollars

Answer

7 oz cost  0.34

15 oz cost 0.35

26 oz cost 0.32

<h3>The best buy is 0.32 / oz for 26 oz</h3>

4 0
2 years ago
Find the distance, c, between (–3, –4) and (1, 5) on the coordinate plane. Round to the nearest tenth if necessary.
nexus9112 [7]

Answer:

I believe the answer 16

Step-by-step explanation:

All you have to do is count.

8 0
3 years ago
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