Pertanyaan

Kerjakan soal-soal berikut ini! 2 15 2 × 8 7 4 × 3 25 15 = …

Kerjakan soal-soal berikut ini!

$2 \frac{2}{15} \times 8 \frac{4}{7} \times 3 \frac{15}{25} = \dots$

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Jawaban terverifikasi

Jawaban

.

5 over 12 cross times 3 2 over 8 cross times 1 1 third equals 65 29 over 35

Pembahasan

Untuk dapat melakukan perkalian antara pecahan campurandengan pecahan campuran, kita perlu mengubah pecahan campuran menjadi pecahan biasa terlebih dahulu. Perhatikan bahwa lalu dan Akibatnya Jadi, .

Untuk dapat melakukan perkalian antara pecahan campuran dengan pecahan campuran, kita perlu mengubah pecahan campuran menjadi pecahan biasa terlebih dahulu.

Perhatikan bahwa

$table attributes columnalign right center left columnspacing 0px end attributes row cell 2 2 over 15 end cell equals cell fraction numerator 15 cross times 2 plus 2 over denominator 15 end fraction end cell row blank equals cell fraction numerator 30 plus 2 over denominator 15 end fraction end cell row blank equals cell 32 over 15 end cell end table$

lalu

$table attributes columnalign right center left columnspacing 0px end attributes row cell 8 4 over 7 end cell equals cell fraction numerator 7 cross times 8 plus 4 over denominator 7 end fraction end cell row blank equals cell fraction numerator 56 plus 4 over denominator 7 end fraction end cell row blank equals cell 60 over 7 end cell end table$

dan

$table attributes columnalign right center left columnspacing 0px end attributes row cell 3 15 over 25 end cell equals cell fraction numerator 25 cross times 3 plus 15 over denominator 25 end fraction end cell row blank equals cell fraction numerator 75 plus 15 over denominator 25 end fraction end cell row blank equals cell 90 over 25 end cell end table$

Akibatnya

$table attributes columnalign right center left columnspacing 0px end attributes row cell 2 2 over 15 cross times 8 4 over 7 cross times 3 15 over 25 end cell equals cell 32 over up diagonal strike 15 to the power of 1 cross times 60 over 7 cross times up diagonal strike 90 to the power of 6 over 25 end cell row blank equals cell 32 over 1 cross times up diagonal strike 60 to the power of 12 over 7 cross times 6 over up diagonal strike 25 to the power of 5 end cell row blank equals cell fraction numerator 2.304 over denominator 35 end fraction end cell row blank equals cell 65 29 over 35 end cell end table$

Jadi, 5 over 12 cross times 3 2 over 8 cross times 1 1 third equals 65 29 over 35 .