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r-ruslan [8.4K]
4 years ago
7

2 equivalent fractions for 9/15

Mathematics
1 answer:
Hitman42 [59]4 years ago
4 0
The easiest to find equivalent fractions is to multiply both the numerator and denominator by the same integer.  

For Example, an equivalent fraction for 9/15 is 18/30.  I got this answer by multiplying 9*2=18 and 15*2=30.

Another equivalent fraction for 9/15 is 27/45 because 9*3=27 and 15*3=45.

******Note
Just make sure that you always multiply the numerator and denominator by the same number, or else your fractions won't be equivalent!!
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A standard deck of cards contains 52 cards. One card is selected from the deck.
Anastaziya [24]

Answer:

1) Probability of randomly selecting a diamond or club = \frac{1}{2}

2)Probability of randomly selecting a diamond or club or heart = \frac{3}{4}

3) P(selecting a five or club) = \frac{4}{13}

Step-by-step explanation:

Total cards in the deck = 52

Noe Let E : favorable Event

So, P(E) =  \frac{\textrm{Number of Favorable outcomes}}{\textrm{Total outcomes}}

1 ) Probability of randomly selecting a diamond or club

Here the favorable event is picking a club or diamond

hence, favorable outcomes  = Number of club and diamond

= 13 + 13 = 26

⇒P(selecting a diamond or club) = \frac{26}{52}  = \frac{1}{2}

2) Probability of randomly selecting a diamond or club or heart

Here the favorable event is picking a diamond and club and heart.

hence, favorable outcomes = Number of   clubs + diamond + heart

= 13 + 13 + 13 = 39

⇒P(selecting a diamond or club or heart) = \frac{39}{52}  = \frac{3}{4}

3 )Probability of randomly selecting a five or club.

Here the favorable event is selecting a five or club.

hence, favorable outcomes = Number of 5 in a deck  + Number of clubs

=  3 +  13  = 16

⇒P(selecting a five or club) = \frac{16}{52}  = \frac{4}{13}

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