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Setler79 [48]
3 years ago
7

How do you MULTIPLY and DIVIDE fractions?

Mathematics
2 answers:
Mariulka [41]3 years ago
8 0

When multiplying fractions you simply multiply the numerator together and then the denominator together. An example=

1/2 x 3/4, you simply do 3 x 1/ 4 x 2, which should give you an answer of 3/8

When dividing fractions you have to flip the second fraction and make the division sign into a multiplication sign. An example;

3/4 divided by 1/8

1) you flip the second fraction so you get 3/4 divided by 8/1, then you flip the divided by into times by so you get

3/4 x 8/1, then you can just multiply the numerators and denominators together to get 24/4, which is 6

Fofino [41]3 years ago
6 0
When you multiply fractions, you are just multiplying straight accross.
EXAMPLE: 1/2 x 1/3 = 1/6
When you dive fractions, you flip the second fraction and then multiply
EXAMPLE: 1/2 divided by 1/3 
1/2 divided by 3/1 = 3/2
3/2 = 1 and 1/2

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<u><em>Answer:</em></u>

The combined perimeter is 24x + 52 units

<u><em>Explanation:</em></u>

<u>1- Let's get the perimeter of the first rectangle:</u>

The dimensions of the first rectangle are 4x+5 and 2x+7 units

Perimeter of rectangle = 2(length + width)

Perimeter of first rectangle = 2 (4x+5+2x+7)

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Perimeter of first rectangle = <u>12x + 24 units</u>

<u>2- Let's get the perimeter of the second rectangle:</u>

The dimensions of the second rectangle are 3x+14 and 3x units

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<u>3- Finally, let's get the combined perimeter:</u>

Combined perimeter will be the <u>summation</u> of the two perimeters

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Combined perimeter = <u>24x + 52 units</u>

Hope this helps :)

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