Question

If 18/b = 21/30, then b is = ? Plz give the answer in statements or by equations.

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

$\frac{18}{b} = \frac{21}{30} \\ b \times 21 = 18 \times 30 \\ b = \frac{18 \times 30}{21} \\ b = \frac{180}{7}$