Arsyana T

14 Agustus 2023 15:55

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Arsyana T

14 Agustus 2023 15:55

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Jika pecahan campuran ditambahkan caranya bagaimana contohkan dong😭

Jika pecahan campuran ditambahkan caranya bagaimana  contohkan dong😭

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Sumber W

Community

14 Agustus 2023 17:04

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<p>Penjumlahan Pecahan :</p><p>1. <strong>Pecahan Biasa</strong></p><p>&nbsp; &nbsp; &nbsp;a. Penyebutnya sama</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; a/b + c/b = (a + c)/b</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Contoh :</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;3/5 + 1/5 = (3 + 1)/5 = 4/5</p><p>&nbsp; &nbsp; &nbsp; &nbsp;</p><p>&nbsp; &nbsp; &nbsp; b. Penyebutnya Beda</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;a/b + c/d = (axd)/(bxd) + (bxc)/(bxd)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Contoh :</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2/3 + 5/6 = (2x6)/(3x6) + (3x5)/(3x6)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 12/18 + 15/18</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 27/18</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1 9/18</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1 1/2</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;atau dengan mencari KPK penyebutnya</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Contoh :</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2/3 + 5/6 = 4/6 + 5/6 &nbsp; &nbsp; (karena KPK dari 3 dan 6 adalah 6)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 9/6</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1 3/6</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1 1/2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</p><p>2. <strong>Pecahan Campuran</strong></p><p>&nbsp; &nbsp; &nbsp;Cara mengerjakan pecahan campuran sebenarnya sama saja&nbsp;</p><p>&nbsp; &nbsp; &nbsp;dengan mengerjakan pecahan biasa.</p><p>&nbsp; &nbsp; &nbsp;<strong>Cara 1 :</strong></p><p>&nbsp; &nbsp; &nbsp;Contoh :</p><p>&nbsp; &nbsp; &nbsp;3 2/5 + 6 3/4 = (3 + 6) + (2/5 + 3/4)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 9 + (8/20 + 15/20)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 9 + 23/20</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 9 + 1 3/20</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 10 3/20</p><p>&nbsp; &nbsp; &nbsp;&nbsp;<strong>Cara 2 :</strong></p><p>&nbsp; &nbsp; &nbsp; &nbsp;Diubah ke pecahan biasa terlebih dahulu baru kita selesaikan&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp;seperti biasa.</p><p>&nbsp; &nbsp; &nbsp; &nbsp;Contoh :&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp;3 2/5 + 6 3/4 = 17/5 + 27/4</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 68/20 + 135/20</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 203/20</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 10 3/20</p>

Penjumlahan Pecahan :

1. Pecahan Biasa

     a. Penyebutnya sama

          a/b + c/b = (a + c)/b

          Contoh :

           3/5 + 1/5 = (3 + 1)/5 = 4/5

       

      b. Penyebutnya Beda

           a/b + c/d = (axd)/(bxd) + (bxc)/(bxd)

           Contoh :

           2/3 + 5/6 = (2x6)/(3x6) + (3x5)/(3x6)

                              = 12/18 + 15/18

                              = 27/18

                              = 1 9/18

                              = 1 1/2

           atau dengan mencari KPK penyebutnya

           Contoh :

           2/3 + 5/6 = 4/6 + 5/6     (karena KPK dari 3 dan 6 adalah 6)

                              = 9/6

                              = 1 3/6

                              = 1 1/2          

2. Pecahan Campuran

     Cara mengerjakan pecahan campuran sebenarnya sama saja 

     dengan mengerjakan pecahan biasa.

     Cara 1 :

     Contoh :

     3 2/5 + 6 3/4 = (3 + 6) + (2/5 + 3/4)

                               = 9 + (8/20 + 15/20)

                               = 9 + 23/20

                               = 9 + 1 3/20

                               = 10 3/20

      Cara 2 :

       Diubah ke pecahan biasa terlebih dahulu baru kita selesaikan 

       seperti biasa.

       Contoh : 

       3 2/5 + 6 3/4 = 17/5 + 27/4

                                 = 68/20 + 135/20

                                 = 203/20

                                 = 10 3/20


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Rendi R

Community

15 Agustus 2023 01:03

Jawaban terverifikasi

<p>bantu jwb kk</p><p>&nbsp;</p><p>Untuk menambahkan pecahan campuran, ada beberapa langkah yang harus dilakukan:</p><ol><li>Ubah pecahan campuran menjadi pecahan biasa dengan cara mengalikan bilangan bulat dengan penyebut, lalu tambahkan dengan pembilang. Contoh: 2 1/4 = {(2 x 4) + 1} / 4 = 9/4.</li><li>Jumlahkan pecahan biasa dengan mencari bilangan penyebut terkecil (KPK) dan menyesuaikan pembilangnya. Contoh: 9/4 + 3/8 = {(9 x 2) / (4 x 2)} + &nbsp;{(3 x 1) / (8 x 1)} = 18/8 + 3/8 = 21/8.</li><li>Ubah kembali pecahan biasa menjadi pecahan campuran jika pembilang lebih besar dari penyebut dengan cara membagi pembilang dengan penyebut. Contoh: 21/8 = (21 : 8) + (sisa bagi) / 8 = &nbsp;2 + 5/8 = 2 5/8</li></ol>

bantu jwb kk

 

Untuk menambahkan pecahan campuran, ada beberapa langkah yang harus dilakukan:

  1. Ubah pecahan campuran menjadi pecahan biasa dengan cara mengalikan bilangan bulat dengan penyebut, lalu tambahkan dengan pembilang. Contoh: 2 1/4 = {(2 x 4) + 1} / 4 = 9/4.
  2. Jumlahkan pecahan biasa dengan mencari bilangan penyebut terkecil (KPK) dan menyesuaikan pembilangnya. Contoh: 9/4 + 3/8 = {(9 x 2) / (4 x 2)} +  {(3 x 1) / (8 x 1)} = 18/8 + 3/8 = 21/8.
  3. Ubah kembali pecahan biasa menjadi pecahan campuran jika pembilang lebih besar dari penyebut dengan cara membagi pembilang dengan penyebut. Contoh: 21/8 = (21 : 8) + (sisa bagi) / 8 =  2 + 5/8 = 2 5/8

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