Converting decimals to fractions example 3 | Decimals | Pre-Algebra | Khan Academy

Converting this decimal results in a fraction that needs to be simplified. Can you help us?

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Нека да видим как можем да запишем 0,36 като обикновена дроб.

Има няколко начина да постигнем това. Аз предпочитам следния начин:

0,36 е същото като 36 стотни.

Казано по друг начин,

това е на мястото на стотните.

Това е на мястото на десетите, което може да се разглежда и като 30 стотни.

3 десети е същото като 30 стотни.

Затова можем да кажем, че това е равно на

36 стотни или 36/100.

След като сме записали обикновената дроб, остава да я опростим,

тъй като 36 и 100 имат общи делители.

И двете числа се делят на 4.

Следователно можем да разделим числителя и знаменателя на 4,

като стойността на дробта няма да се промени,

тъй като делим на една и съща стойност.

36, делено на 4, дава 9.

И 100, делено на 4, дава 25.

Тези две числа нямат повече общи делители.

Вече сме записали дробта в опростена форма и сме готови.