Pertanyaan

3 4 + 12 7 + 12 1 = ....

$\frac{4}{3} + \frac{7}{12} + \frac{1}{12} =$ ....

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I. Sutiawan

Master Teacher

Mahasiswa/Alumni Universitas Pasundan

Jawaban terverifikasi

Pembahasan

Perhatikan bahwa pada penjumlahan pecahan berlaku sifat asosiatif, sehingga

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 4 over 3 plus 7 over 12 plus 1 over 12 end cell equals cell 4 over 3 plus open parentheses 7 over 12 plus 1 over 12 close parentheses end cell row blank equals cell 4 over 3 plus fraction numerator 7 plus 1 over denominator 12 end fraction end cell row blank equals cell 4 over 3 plus 8 over 12 end cell row blank equals cell 4 over 3 plus 2 over 3 end cell row blank equals cell fraction numerator 4 plus 2 over denominator 3 end fraction end cell row blank equals cell 6 over 3 end cell row blank equals 2 end table end style$