Answers

  • Brainly User
2016-06-14T11:06:37+08:00
Find the LCD of all the terms.  LCD = 4.

The sequence becomes:  12/4, 13/4, 14/4, 15/4

The common difference:
a₄ - a₃ = 15/4 - 14/4 = 1/4
a₃ - a₂ = 14/4 - 13/4 = 1/4
a₂ - a1 = 13/4 - 12/4 = 1/4

ANSWER:  1/4
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