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3/4 + N = 4/5

subtract 3/4 from 4/5 and to do this you will need common denominators, 20 here, and a form of one to make all equal

4*4/4*5 - 5*3/5*4

16/20 - 15/20

= 1/20

----------------so

N = 1/20

----------------check

15/20 + 1/20 = 16/20

16/20 = 16/20

-------------------------checks

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13y ago

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