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Artist 52 [7]
3 years ago
7

How do you subtract fractions with different denominators (I completely forgot)​

Mathematics
1 answer:
Ghella [55]3 years ago
6 0

Answer:

multiply them by a a number that allows the denominators to be the same

Step-by-step explanation:

example

1/2-1/6

I would multiply 1/2 by 3 to get 3/6 which i could then subtract from 1/6

3/6-1/6 = 2/6

You might be interested in
7/8 + (-2/3)
irakobra [83]

Ok, lets start with the top.

7/8 + (-2/3)

Thats equal to

7/8 - 2/3

The common denominator will be 24

21/24 - 16/24

Subtract

5/24

Now, to divide you multiply by the reciprocal, so

5/24 / 5/6

Becomes

5/24 * 6/5

Cross simplify and get your answer

1/4

7 0
3 years ago
Identify which properties are being used in each step
olga55 [171]
The first one is distributive property
I think the 2nd and last are associative
and the last is commutative
3 0
4 years ago
A number cube is rolled twice. What is the P (2 and then odd number)?
marshall27 [118]

Answer:

P (2 and then odd number) = \frac{1}{12}

Step-by-step explanation:

Probability refers to chances of occurrence of any event.

A number cube is rolled twice.

Possible outcomes are as follows:

(1,1),(1,2),(1,3),(1,4),(1,5),(1,6)

(2,1),(2,2),(2,3),(2,4),(2,5),(2,6)

(3,1),(3,2),(3,3),(3,4),(3,5),(3,6)

(4,1),(4,2),(4,3),(4,4),(4,5),(4,6)

(5,1),(5,2),(5,3),(5,4),(5,5),(5,6)

(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)

Total number of outcomes = 36

Favorable outcomes include outcomes with 2 and then odd number.

So,

Favorable outcomes are (2,1),(2,3),(2,5)

Number of favorable outcomes = 3

Probability is equal to number of favorable outcomes divided by total number of outcomes.

Therefore,

P (2 and then odd number) = Number of favorable outcomes ÷ Total number of outcomes

=\frac{3}{36}

=\frac{1}{12}

3 0
3 years ago
You have nine books that you want to arrange on a book shelf. How many different ways can you arrange the books on one shelf?
laila [671]

oh its easy you can do 3 books each layer

8 0
3 years ago
What steps do you take to divide multi-digit whole numbers?Pls answer this today...
lana66690 [7]
You basically just repeat the same steps of a regular 2-3 ditget division 
7 0
4 years ago
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