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
Arada [10]
3 years ago
14

If you want to add or subtract fractions, what is the first thing you need to do?​

Mathematics
2 answers:
gregori [183]3 years ago
5 0

Answer:

take lowest common factor

Step-by-step explanation:

nataly862011 [7]3 years ago
3 0

Answer:

Find the least common denominator for both fractions and set up the fractions so they can both contain that same denominator.

Step-by-step explanation:

For example, let's say you want to add the fractions \frac{3}{4} and \frac{2}{7}.

First, you will want to find the least common demoninator.  Write out the multiples for both denominators originally given, in this case 4 and 7.  Let's go up to 4*10 and 7*10:

4: 4,8,12,16,20,24,28,32,36,40

7: 7,14,21,28,35,42,49,56,63,70

Se which number in both sets is the first number to be the same in both sets.  That will be your least common denominator.  In this case, the least comon denominator is 28.

To set the fractions right, you would need to multiply the first fraction, 3/4, by 7/7: \frac{3}{4}*\frac{7}{7}=\frac{21}{28}

Then, you would need to multiply the second fraction, 2/7, by 4/4: \frac{2}{7}*\frac{4}{4}=\frac{8}{28}

Now, since both fractions have a common deonminator now, you can add them togther and simplify afterwards if you need to:

\frac{21}{28}+\frac{8}{28}=\frac{29}{28}=1\frac{1}{28}

And that's it.

You might be interested in
If some one can bike 32 miles in 160 minutes how long will it take them to go 1 mile
Leto [7]
5 minutes

32/160 = 0.2 mile/min

0.2x = 1

0.2x/0.2 = 1/0.5

x = 5

5 minutes
3 0
2 years ago
What is the measure of UVW in the triangle shown? <br><br>A. 140° <br>B. 50° <br>C. 60° <br>D. 10°​
Vilka [71]

Answer:

b

Step-by-step explanation:

40 + 90 =130

180-130=50

4 0
3 years ago
Since ABCD is a parallelogram, the two pairs of _________ sides (AB¯ and CD¯, as well as AD¯ and BC¯) are congruent. Then, since
Marysya12 [62]

Answer:

1. Opposite

2. angle-side-angle criterion

Step-by-step explanation:

Since ABCD is a parallelogram, the two pairs of <u>(opposite)</u> sides (AB¯ and CD¯, as well as AD¯ and BC¯) are congruent. Then, since ∠9 and ∠11 are vertical angles, it can be concluded that ∠9≅∠11. Since ABCD is a parallelogram, AB¯∥CD¯. Since ∠2 and ∠5 are alternate interior angles along these parallel lines, the Alternate Interior Angles Theorem allows that ∠2≅∠5. Since two angles of △AEB are congruent to two angles of △CED, the Third Angles Theorem supports that ∠8≅∠3. Therefore, using the <u>(angle-side-angle criterion)</u>, it can be stated that △AEB≅△CED. Then, applying the definition of congruent triangles, it can be stated that AE¯≅CE¯, which makes E the midpoint of AC¯. Use a similar argument to prove that △AED≅△CEB; then it can be concluded that E is also the midpoint of BD¯. Since the midpoint of both line segments is the same point, the segments bisect each other by definition. Match each number (1 and 2) with the word or phrase that correctly fills in the corresponding blank in the proof.

A parallelogram posses the following features:

   1. The opposite sides are parallel.

   2. The opposite sides are congruent.

   3. It has supplementary consecutive angles.

   4. The diagonals bisect each other.

7 0
3 years ago
Find the missing side length of m.
zysi [14]

Answer:

m=4

Step-by-step explanation:

Since we know that quadrilateral ABCD is similar to QRST, we know that the side lengths will be proportional to one another. As such, we should take a ratio to determine the side length of m.

\frac{ST}{CD}=\frac{RS}{BC}\\\\\frac{6}{15} =\frac{m}{10}\\

\frac{6*10}{15} =m\\m=60/15=4

m=4

6 0
3 years ago
Describe the transformation
ohaa [14]

Answer:

tag in picture

Step-by-step explanation:

tag in picture so i can see the problem and solve it

3 0
3 years ago
Other questions:
  • Brady recycled 4 cans less than 3 times the number of cans Addison recycled, x.
    7·2 answers
  • In the equation 3/4y+1/2=3 1/4, the fractional coefficient is
    5·1 answer
  • The distance between two cities is 1900 km. How long will it take, in h, to drive from one city to the other if your average spe
    12·1 answer
  • a store owner bought some scrunchies for $0.10 each.she marked them up to $5 each.what was the percent increase in the price of
    7·2 answers
  • Maros runs one mile in 7.5 minutes.If he spends a total of 30 minutes running at the same pace, how many miles will he complete?
    7·2 answers
  • Which best explains how the division equation relates to the diagram? (11 7/8) ÷ (2 3/8) =5
    15·1 answer
  • Help I’ll give you brainliest
    7·1 answer
  • Can you guys help i’m kinda struggling
    14·1 answer
  • If m 101, what is the value of x to<br> the nearest whole number?
    11·1 answer
  • write the 3 terms of ( 2a+ax)^5 given the first terms in the expansion (b +2x) (2+ ax)^5 are 96 - 176x+cx^2. find the values of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!