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ELEN [110]
3 years ago
7

What is 4/9 + 1 1/5 =

Mathematics
2 answers:
faust18 [17]3 years ago
5 0

Answer:

2 29/45 or 119/45

Step-by-step explanation:

First, find a common denominator. I chose 45 (9x5) Multiply the numerator by what you multiplied the denominator by (4x5=20|9x5=45\11x9=99| 5x9=45)

Add the numerator next ( 20+99=119). Converted to a mixed number is 2 29/45

yarga [219]3 years ago
4 0

Answer:

74/45

Step-by-step explanation:

First convert 1 1/5 to an improper fraction (6/5)

Then you are going to need to look for a least common denominator between 6/5 and 4/9

The least common multiple between 5 and 9 is 45

Now you need to get the denominator of each fraction to 45 so that you can add them

To get 6/5 to have a denominator of 45, you will need to multiply the denominator (5) by 9. REMEMBER- whatever you do to the bottom you must also do to the top

If you multiply the 5 by 9, you must also multiply the 6 at the top by 9

So now you have 54/45 for the second fraction

To get the first fraction with a denominator of 45 you must multiply everything by 5 (20/45)

Now you can simply add straight across (54+20=74)

Remember to keep the denominator the same and you should end up with 74/45 (This cannot be simplified)

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Step-by-step explanation:

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Step-by-step explanation:

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Determine if the events A and B are independent. Show all steps.
zmey [24]

<u><em></em></u>

Answer:

P(A U B )  = \frac{13}{25}

Step-by-step explanation:

<u><em>STEP:-1</em></u>

Given that events A and B are independent then

P(A ∩B ) = P(A) P(B)

Given that P(A) = 2/5 and P(B) = 1/5

<u><em>STEP:- 2</em></u>

P(A ∩B ) = P(A) P(B)

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P(A U B ) = P(A) +P(B) - P(A) P(B)

<u><em>Step(iii):-</em></u>

<u><em></em></u>P(A U B ) = \frac{2}{5}  +\frac{1}{5} - \frac{2}{5} X \frac{1}{5}<u><em></em></u>

<u><em></em></u>P(A U B ) = \frac{3}{5}  - \frac{2}{5} X \frac{1}{5}<u><em></em></u>

<u><em></em></u>P(A U B ) = \frac{3}{5}  - \frac{2}{25}<u><em></em></u>

<u><em></em></u>P(A U B ) = \frac{15-2}{25} = \frac{13}{25}<u><em></em></u>

<u><em /></u>

<u><em /></u>

4 0
3 years ago
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