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Mamont248 [21]
3 years ago
13

How to multiply and divide rational numbers?

Mathematics
2 answers:
ad-work [718]3 years ago
8 0

To multiply two fractions, you multiply the numbers straight across. The numerators stick together and multiply; the denominators stick together and multiply. For example:

1/2 times 3/4 = (1 times 3)/(2 times 4) = 3/8

After multiplying, we reduce if possible. In this case, we cannot reduce, so we're done with this example.

--------------------------------

To divide two fractions, you would flip the second fraction and then multiply straight across. So, for example,

5/7 divided by 7/8 = (5/7) times (8/7) = (5 times 8)/(7 times 7) = 40/49

Notice how the steps are similar as before. The only difference really is that we flipped the second fraction.

lutik1710 [3]3 years ago
5 0

To divide rational numbers, you turn the division problem into a multiplication problem by flipping the second rational number. Then you go ahead and multiply the tops and bottoms together to get your answer. If you can simplify your problem before multiplication, you can go ahead and do so to make your problem easier.

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Write a recursive formula for the sequence 1, 5, 9, 13
11Alexandr11 [23.1K]

Answer:

\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}

Explanation:

Sequence: 1, 5, 9, 13

  • Add(ing) 4 every time

\bold{a(1) \ = \ 1}

\bold{\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}}

5 0
3 years ago
Julio is 36 years old, and James is 11 years old. In how many years will Julio’s age be twice a many as James’s age?
boyakko [2]

Answer:

in 14 years Julio will be 50 and James will be 25

6 0
3 years ago
A rectangular shoebox has an area of 36 squared inches and a height of 12 inches.What is the length of the shoebox?
Ilya [14]

Answer:

3 inches

Step-by-step explanation:

36 inches ÷ 12 inches = 3 inches

4 0
3 years ago
Can u help me plz I suck at math
NemiM [27]

Answer:

so its the second one (1.28 , -3.68)

Step-by-step explanation:

its (32/25 , -92/25)

which equals to (1.28,-3.68)

4 0
3 years ago
Find the vertical and horizontal asympotote for (×-2) (×+3)/ (2×+2)
nekit [7.7K]

\bf \cfrac{(x-2)(x+3)}{2x+2}\implies \cfrac{x^2+x-6}{2x+2}~~ \begin{array}{llll} \leftarrow \textit{2nd degree polynomial}\\ \leftarrow \textit{1st degree polynomial} \end{array} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{vertical asymptote}}{2x+2=0}\implies 2x=-2\implies x=-\cfrac{2}{2}\implies x=-1


when the degree of the numerator is greater than the denominator's, then it has no horizontal asymptotes.


quick note:

when the degree of the numerator is 1 higher than the degree of the denominator, then it has an slant-asymptote, so this one has a slant-asymptote.

6 0
3 years ago
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