3 years ago

What is the answer for the problem 3/4-1/3

2 answers:

lina2011 [118]3 years ago

8 0

It is 5/12
You have to make the denominators equal so 3/4 * 3 ( multiply 3 on top and bottom) = 9/12
1/3 * 4 = 4/12
9/12 - 4/12 = 5/12

madam [21]3 years ago

3 0

Answer = 5/12

You need to make the denominator the same for both fractions to find the answer.

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saul85 [17]

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2 years ago

A bag holds 1 blue block and 3 yellow blocks. How many green blocks should be added to the bag to make the probability of random

Drupady [299]

$n$ - the number of green blocks which is equal to the number of favourable events
$1+3+n=4n$ - the number of all blocks, which is equal to the number of all possible outcomes

$P(A)=\dfrac{n}{4+n}=\dfrac{1}{2}\\
1\cdot( 4+n)=2\cdot n\\
4+n=2n\\
2n-n=4\\
n=4
$