1 4/5-(0,2+¾)=

Jawaban : 17/20 Konsep : >> 0,a = a/10 >> a b/c = {(a x c)+b}/c >> a/b - c/d = ( ad - bc)/bd >> a/b+c/b = (a+c)/b Pembahasan : 1 4/5 - ( 0,2 + ¾ ) = {(1 x 5) + 4}/5 - ( 2/10 + 3/4 ) = (5 + 4)/5 - (2/10 + 3/4) = 9/5 - ((2 x 4) + (10 x 3))/(10 x 4) = 9/5 - (8 + 30)/40 = 9/5 - 38/40 = 9/5 - (38 : 2)/(40 : 2) = 9/5 - 19/20 = (9 x 4)/(5 x 4) - 19/20 = 36/20 - 19/20 = (36 - 19)/20 = 17/20 Jadi, hasilnya adalah 17/20 Semoga bisa membantu ya😉