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Charra [1.4K]
3 years ago
15

1/2 (4-k)=2/5 Distribute and find LCM

Mathematics
1 answer:
borishaifa [10]3 years ago
3 0

Answer:

  • 20 -5k = 4
  • the LCM of the denominators is 10

Step-by-step explanation:

I find it convenient to do the problem in the reverse order: find the LCM, then distribute. That way, I'm not distributing a fraction.

The LCM of 2 and 5 is their product: 2·5 = 10. Multiplying the equation by 10 gives ...

  5(4 -k) = 4

Now, distributing, we get ...

  20 -5k = 4

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