heddasoccer heddasoccer
  • 06-12-2017
  • Mathematics
contestada

find the least common denominators of these two rational experssions -1/y and 2/5y

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pmayl
pmayl pmayl
  • 06-12-2017
The least common denominator is 5y, and can be obtained by multiplying 
-1/y by 5/5 to get -5/5y. 

If we add the numbers using the least common denominator, we get:
-5/5y + 2/5y = -3/5y
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