Pertanyaan

Tentukan nilai dari 1 4 1 × 4 3 ÷ 1 2 1 !

Tentukan nilai dari $1 \frac{1}{4} \times \frac{3}{4} \div 1 \frac{1}{2}$ !

N. Nisa

Master Teacher

Jawaban terverifikasi

Jawaban

.

table attributes columnalign right center left columnspacing 0px end attributes row blank blank 1 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 1 fourth end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cross times end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 3 over 4 end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank divided by end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 1 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 1 half end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 5 over 8 end cell end table

Pembahasan

Pada perkalian dan pembagian yang melibatkan pecahan campuran terlebih dahulu ubah pecahan campuran ke bentuk pecahan biasa. b a × d c = b d a c b a ÷ d c = b a × c d Perhatikan perhitungan berikut Jadi, .

Pada perkalian dan pembagian yang melibatkan pecahan campuran terlebih dahulu ubah pecahan campuran ke bentuk pecahan biasa.

$\frac{a}{b} \times \frac{c}{d} = \frac{a c}{b d} \frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}$

Perhatikan perhitungan berikut

$table attributes columnalign right center left columnspacing 0px end attributes row cell 1 1 fourth cross times 3 over 4 divided by 1 1 half end cell equals cell fraction numerator 4 cross times 1 plus 1 over denominator 4 end fraction cross times 3 over 4 divided by fraction numerator 2 cross times 1 plus 1 over denominator 2 end fraction end cell row blank equals cell 5 over 4 cross times 3 over 4 divided by 3 over 2 end cell row blank equals cell open parentheses 5 over 4 cross times 3 over 4 close parentheses divided by 3 over 2 end cell row blank equals cell 15 over 16 divided by 3 over 2 end cell row blank equals cell 15 over 16 cross times 2 over 3 end cell row blank equals cell 30 over 48 end cell row blank equals cell 5 over 8 end cell end table$

Jadi, .