DavidBrainstar560
DavidBrainstar560 DavidBrainstar560
  • 03-04-2016
  • Mathematics
contestada

Please help I'm doing Test Corrections (PHOTO question #14)

Please help Im doing Test Corrections PHOTO question 14 class=

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mssarkar96 mssarkar96
  • 03-04-2016
The answer is 'D'

When you divide 48 and 78 by 2, you get 24 and 39. Then divide 24 and 39 by 3 and you will get 8 and 13, which don't have any common factors.

The same happens with 12 and 30...
When 12 and 30 are divided by 2, you get 6 and 15. Then divide 6 and 15 by 3 and you get 2 and 5, which have no more common factors.

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