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2 years ago

Multiplying fractions

2 answers:

6 0

Simplify both fractions first.
Next multiply both tops together and that becomes the new top
Now both bottoms to get new bottom
simplify again

EX) $\frac{3}{4} * \frac{5}{6}$ (already simplified)
3*5=15
4*6=24
$\frac{15}{24}$
It cannot simplify again so that is your answer

iragen [17]2 years ago

6 0

First step is to either multiply the numerators (top numbers) by each other and the denominators (bottom numers) by each other, and then simplify the fraction, or you can first simplify then multiply. Hope this helped!!!

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Answer:

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Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The customers are chosen without replacement, and the order in which they are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

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Desired outcomes:

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$D = C_{66,2} = \frac{66!}{2!(66-2)!} = 2145$

Total outcomes:

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Probability:

$p = \frac{D}{T} = \frac{2145}{54615} = 0.0393$

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