Question

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Answer 1

Answer:

$\frac{5}{24}$

Step-by-step explanation:

Calculate the number of CD's of the different musical styles

$\frac{1}{6}$ × 72 = $\frac{72}{6}$ = 12 ← dance CD's

$\frac{1}{4}$ × 72 = $\frac{72}{4}$ = 18 ← hip hop CD's

$\frac{3}{8}$ × 72 = 3 × 9 = 27 ← reggae CD's

total = 12 + 18 + 27 = 57

number of rock CD's = 72 - 57 = 15

fraction of rock CD's = $\frac{15}{72}$ = $\frac{5}{24}$