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
Ierofanga [76]
3 years ago
10

What are the steps for adding and subtracting mixed numbers with unlike denominators

Mathematics
2 answers:
Mice21 [21]3 years ago
6 0
Say we have 2/3 and 1/2.

Multiply 2/3 to make 4/6.

Multiply 1/2 to make 3/6.

Suddenly, you can do whatever you want with the problem because you are working with common denominators.

I hope that this helps.  If you get stuck on future problems, just find the thing that the two denominators have in common after multiplying them a few times.  An example would be 4 and 7.  The lowest number that they can multiply to that they have least in common is 28.
Valentin [98]3 years ago
5 0
Well, there are different ways to do this if you are really familiar with fractions, but "officially" :P

1) convert mixed numbers to improper fractions.

rule:  a b/c = (ac+b)/c

2)  make all fractions have a common denominator...

a/b+c/d

(a/b)(d/d)+(c/d)(b/b)

(ad/bd)+(cb/bd)

3)

The simplify your final answer with greatest common denominator or convert back to mixed number if needed...
You might be interested in
Plz Help!!!!!!!!!!!!!!!!!!!!!!!!!
Novosadov [1.4K]

Answer:

line segments j' k' and m' n' do not intersect and are the same distance apart as jk and mn

Step-by-step explanation:

this is because if jk and mn are both moved to the left two units, the space between them does not change

4 0
3 years ago
1. When the point is reflected over x-axis, what will<br> the new coordinates of the new point be?
stich3 [128]

Answer:

(x , y) ----> (-x , y)

Step-by-step explanation:

(x , y) ----> (-x , y)

Example for 1. :

(-4,2) ---> (4,2)

4 0
2 years ago
What is the solution of the system of equations <br> y =2x - 3
kherson [118]

Answer:

-37/5= y

x=11/5

Step-by-step explanation:

4x-3y=31

-3y=-4x+31 regroup it to match the other

-2 y=(2x-3)(-2) multiply by -2 to get -4x

-3y=-4x+31

-2y=-4x+6 adding

-5y=37 divide

-37/5= y

4x-3(-37/5)=31

x=11/5

7 0
2 years ago
7. Quadrilateral MNPQ has vertices M(4,0), N(0,6), P(-4,0) and Q(0, -6). Determine whether
kirill [66]

Answer:

SQUARE

Step-by-step explanation:

If Quadrilateral MNPQ has vertices M(4,0), N(0,6), P(-4,0) and Q(0, -6).

Find the following MN,  NP, PQ and MQ

Using the formula for calculating the distance between two points

MN = √(6-0)²+(0-4)²

MN = √6²+4²

MN = √36+16

MN = √52

MN = 2√13

NP = √(0-6)²+(-4-0)²

NP = √6²+4²

NP = √36+16

NP = √52

NP = 2√13

PQ = √(-6-0)²+(0-(-4))²

PQ = √6²+4²

PQ = √36+16

PQ = √52

PQ = 2√13

MQ = √(-6-0)²+(0-4)²

MQ = √6²+4²

MQ = √36+16

MQ= √52

MQ = 2√13

Since the length of all the sides are equal, hence the shape is a SQUARE

4 0
2 years ago
Why is it impossible for m
lana [24]

Answer:

? What M? What is impossible?

5 0
3 years ago
Other questions:
  • A study was conducted to determine the mean birth weight of a certain breed of kittens. Consider the birth weights of kittens to
    9·1 answer
  • An african elephant weighs 6 tons.What is the weight of the elephant in pounds.
    15·2 answers
  • Cheyenne needs to cut a piece of paper so that she has exactly 1/3 of it. If the length of the paper is 11 inches, how long will
    13·2 answers
  • 7 2/5 + 8 1/8 =<br>write the answer in simplest form
    13·2 answers
  • Point Y is the midpoint of segment XZ. If XY = 2(3x +1) and YZ = 5x + 22, find the value of x. x = 20 x = 24 x = 18 x =11
    12·1 answer
  • What is binomial expansion
    5·2 answers
  • Pls help me on this i don't know what to do ​
    7·1 answer
  • 2/12 = x/120 x = <br><br><br> i dont get it wth
    5·2 answers
  • What is the solution for 4 x-3+1=1
    12·2 answers
  • the relay race is just over one mile long approximately yards. if jack and 4 other people each run a leg of the relay, how many
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!