LK Pecahan [PDF]

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LEMBAR KERJA 1 .1



Sub Materi Pokok : PECAHAN



Nama



: ....................................... Kelas / No Absen : VII ....... / ............... : ....................................... ............... : ....................................... ............... : ....................................... ............... : ....................................... ............... Perhatikan Gambar pada setiap nomer, Berdasarkan gambar tersebut tentukan Lambang pecahannya! No Bagian dari Pecahan Lambang Pecahan 1.



....................................................... 2.



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3.



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4



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5. Berdasarkan aktivitas di atas, bagaimana cara kalian menentukan pecahan?........................................... ..................................................................................................................................................................... 6. Kesimpulan apakah yang kalian peroleh mengenai pecahan? ..................................................................................................................................................................... ..................................................................................................................................................................... A. Pecahan Senilai I. Perhatikan Gambar berikut,



a. b. c. d. e. Berdasarkan gambar tersebut, 1. Tentukan bentuk pecahan pada masing-masing gambar. ......................................................................................................................................................................... ......................................................................................................................................................................... 2. Berdasakan gambar di atas kesimpulan apa yang kalian peroleh mengenai pecahan tersebut?Jelaskan. ........................................................................................................................................................................ ......................................................................................................................................................................... 3. Kesimpulan apakah yang kalian peroleh mengenai pecahan senilai? .....................................................................................................................................................................



II. Perhatikan gambar berikut ,



Berdasarkan gambar diatas, 4. Bagaimana letak pecahan senilai pada gambar? ........................................................................................................................................................................ ......................................................................................................................................................................... 5. Bagaimana cara mengetahui bahwa dua pecahan atau lebih itu senilai? .................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... B. Perhatikan garis bilangan berikut.



-2



......



-1



......



0



......



3 2



1



......



Berdasarkan garis bilangan diatas, 6. Isilah titik-titik yang terdapat pada garis bilangan tersebut 7. Berdasarkan garis bilangan yang telah kalian isi, bagaimanakah hubungan antara pecahan sebelah kanan dan pecahan sebelah kiri?Jelaskan. ............................................................................................................................................................................... ............................................................................................................................................................................... ............................................................................................................................................................................... 1



1



1



3



8. Gambarlah kembali garis bilangan, kemudian coba tentukan letak dari pecahan − 3 , − 4 , − 5 𝑑𝑎𝑛 − 5 pada garis bilangan tersebut. ............................................................................................................................................................................... ............................................................................................................................................................................... ............................................................................................................................................................................... 9. Kesimpulan apakah yang kalian peroleh dari aktivitas tersebut? ............................................................................................................................................................................... ...............................................................................................................................................................................