7 + 9,5 - 6,7 + 3,1 =
Tolong jawab menggunakan 3 cara yaitu cara desimal, pecahan biasa,dan campuran!
Tolong jawab menggunakan 3 cara yaitu cara desimal, pecahan biasa,dan campuran!
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Jawaban:
Desimal
7 + 9,5 - 6,7 + 3,1 =
16,5 - 6,7 + 3,1 =
9,8 + 3,1 = 12,9
Pecahan Biasa
7 + 9,5 - 6,7 + 3,1 =
70/10 + 95/10 - 67/10 + 31/10 =
165/10 - 67/10 + 31/10 =
98/10 + 31/10 = 129/10
Pecahan campuran
7 + 9,5 - 6,7 + 3,1 =
7 + 95/10 - 67/10 + 31/10 =
7 + 9 5/10 - 6 7/10 + 3 1/10 =
(7 + 9 - 6 + 3) + (5/10 - 7/10 + 1/10) =
(16 - 6 + 3)+ ((-2/10) + 1/10) =
(10+3) + (-1/10) =
13 + (-1/10)=
130/10 + (-1/10) =
130/10 - 1/10 = 129/10 = 12 9/10