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To find the Least Common Denominator (LCD) of fractions, you first need to factor the denominators. The denominators are 40 and 18, which can be factored into 2^3 * 5 and 2 * 3^2, respectively. To find the LCD, you take the highest power of each prime factor that appears in either denominator, which in this case is 2^3 * 3^2 * 5. Therefore, the LCD of 3k/40 and k/18 is 2^3 * 3^2 * 5.

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More answers

3k/40 +k/18

factoring

40=2*2*2*5

18=2*3*3

LCD=2*2*2*5*3*3

LCD=360

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Wiki User

12y ago
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Q: What is the LCD of 3k over 40 and k over 18?
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