18/20 +17/20=.....-27/20

[tex] \frac{18}{20} + \frac{17}{20} = \frac{35}{20} - \frac{27}{20} = \frac{8}{20} = \frac{2}{5} [/tex]

Semoga membantu ^_^

18/20 + 17/20 = 35/20 = 1 15/20
1 15/20 = n + 27/20 ( n = ... )
n = 1 15/20 - 27/20 = 35/20 - 27/20 = 8/20
18/20 + 17/20 = 8/20 + 27/20
Semoga membantu. Jadikan jawaban terbaik ya. ( Maaf ya kalau salah ).