5/12+2/9+n=1 jadi n itu apa yah isinya tks kakak

5/12 + 2/9 + n = 1.
n = 1 - (5/12 + 2/9).
n = 1 - (15/36 + 8/36).
n = 36/36 - 23/36.
n = 13/36.

5/12 + 2/9 + n = 1
n = 1 - (5/12 + 2/9)
n = 1 - ( 30/72 + 16/72)
n = 72/72 - 46/72
n = 26/72
n = 13/36