math

Two fifths of the instruments in the marching band are brass, one third are percussion, and the rest are woodwinds. A)What fraction of the band is woodwinds?
B)One half of the woodwinds are clarinets. What fraction of the band is clarinets?
C)One eighth of the brass instruments are tubas. If there are 240 instruments in the band, how many are tubas?
THANK YOU!

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  1. Total (in fraction) = 1
    Woodwinds = 1-2/5-1/3=(15-6-5)/15=4/15

    half of woodwinds (4/15) are clarinets, so clarinets = (4/15)÷2= 2/15

    One eighth of brass are tubas,
    so
    tubas = (2/5)÷8 = (2/40)=1/20

    whole : 240
    1/20 : x (number of tubas)
    x=240*(1/20)÷1
    =240/20
    =12

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  2. 12

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  3. what is 1/2 of 4/15?

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  4. this was really helpful THX so much

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  5. were did 2/5 come from in the tubas

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  6. this did not help at all in my oppinion

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  7. well a is 1/5

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  8. This did not help at all

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  9. GIVE ME THE ANSWER

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  10. This didn't help at all.Because all I wanted was the answer and this just gave me what the story problem said!!DID NOT HELP

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  11. People gotta scroll down 😑 The answer is down there

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