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The GCF of 6 and 10 is 2.

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Q: What is the GCF of two numbers whose LCM is 30 and whose sum is 16?

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40 and 50

12 & 16

12 and 16

16 and 12 how did you get it

16 and 24

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How about: 12, 16 and 24

The GCF of 9 and 15 is 3. The LCM is 45.

40 and 50

40 and 50

You cannot. LCM{2,6,12} = 12 and GCF{2,6,12} = 2 LCM{4,6,12} = 12 and GCF{4,6,12} = 2 The two sets have the same LCM and GCF but, clearly, their sums are different.

Let the two numbers be x and y. Let suppose that the average of two numbers is 20. Then,x + y = 40 and 40/GCF = 5, where GCF = 40/5 = 8Since LCM is 48 and GCF is 8, the numbers are 16 and 24, whose average is 20 is true.

60 and 36

12 & 16

4 and 8.

40 and 50

No need to answer it anymore.

They are: GCF = 5 and LCM = 325 and the sum is 5+325 = 330