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Home » Bilangan dan Operasi » Bilangan Pecahan

Bilangan Pecahan

Diposkan oleh Matematika Ku Bisa Pukul 2:00 pm

BILANGAN PECAHAN UNTUK MATEMATIKA SMP

Pencapaian belajar adik-adik tentang Bilangan Pecahan adalah mampu memahami dan dapat melakukan operasi hitung bilangan pecahan dalam pemecahan masalah. Operasi yang dimaksud adalah Aritmatika-MatematikaDasar berupa penjumlahan, pengurangan, perkalian, dan pembagian. Masalah-masalah yang coba diselesaikan dengan melibatkan pecahan apapun itu yang terkait dengan soal matematika ataupun masalah dalam kehidupan sehari-hari.

Sudah tau kan ?

Untuk mengetahui pribadi seseorang lebih jauh, tentunya kita perlu untuk berkenalan terlebih dahulu dengannya. Mulai dengan mengetahui nama, tempat tinggal, alamat sekolah, dan sebagainya. Setelah itu barulah kita mengetahui seperti apakah teman kita, apakah baik atau buruk. Teman yang baik tentunya akan membuat kita suka dan senang berteman dengannya. Nah seperti itu juga gambaran dalam mempelajari matematika. Mempelajari matematika haruslah dimulai dengan mengenal, menyukai, dan mencintainya. Mengetahui pengertiannya, bahasannya, sampai kepada mempelajari materinya. Tak terkecuali dengan materi ini, kita perlu untuk mengenal apa yang dimaksud dengan BILANGAN PECAHAN. Sekarang mari kita berkenalan dengan bilangan pecahan.

1) Pengertian Pecahan

Pecahan adalah suatu bilangan yang berbentuk

(dibaca "a per b") dengan b tidak sama dengan 0 (nol), a disebut pembilang dan b disebut penyebut. Pecahan juga dapat dipandang sebagai hasil bagi dari dua Bilangan Bulat a dan b dengan b bukan faktor dari a.

Contoh :

(3 bukan faktor dari 4)

2). Bilangan Pecahan yang Senilai

Suatu bilangan pecahan dikatakan senilai jika pembilang atau penyebutnya dikalikan atau dibagi dengan bilangan yang sama.

Contoh:

senilai dengan

karena 2x5=10 dan 3x5=15

dan

senilai dengan

karena 15:5=3 dan 25:5=5

Contoh Penerapan:

50% dari 24 adalah

dari 24 diartikan sebagai:

Catatan:

senilai dengan

Untuk Cara Menyederhanakan Pecahan Klik :Cara Menyederhanakan Pecahan

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