bagaimana menjawab soal-soal terkait pecahan berikut! 1. Jika =23, =34,=56, maka hitunglah nilai dari: a. pq + pr c. pq : r b. pr − qr d. qr : p
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Pertanyaan
bagaimana menjawab soal-soal terkait pecahan berikut! 1. Jika =23, =34,=56, maka hitunglah nilai dari: a. pq + pr c. pq : r b. pr − qr d. qr : p
1 Jawaban
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1. Jawaban syifajs
p = 2/3 q = 3/4 r = 5/6
a. pq + pr = (2/3 x 3/4) + (2/3 x 5/6)
= 6/12 + 10/18
= 18/36 + 20/36
= 38/36
= 19/18
= 1 1/18
b.pr - qr = (2/3 x5/6) - (3/4 x 5/6)
= 10/18 - 15/24
= 40/72 - 45/72
= -5/72
c. pq : r = 2/3 x 3/4 : 5/6
= 2/3 x 3/4 x6/5
= 36/60
= 3/5
d. qr : p = 3/4 x 5/6 : 2/3
= 3/4 x 5/6 x 3/2
= 45/48
= 15/16