Question

Помогите решить, задача для 6 класса. От ленты отрезали 5/6 всей её длины, а затем ещё 2/3 остатка. Какая часть ленты при этом осталась?Пожалуйста, скажите решение без х

Answer 1

Принимаем всю ленту за 1,тогда
1)1-5/6=1/6 осталась после того как отрезали первый раз
2)1/6*2/3=1/9 отрезали во второй раз
3)1-5/6-1/9=1/18 осталась
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Answer 2

Problem Analysis

The problem involves finding the remaining fraction of a ribbon after a portion is cut off twice. The ribbon is first cut to 5/6 of its original length, and then another 2/3 of the remaining length is cut off.

Solution

To find the remaining fraction of the ribbon, we can calculate the product of the two fractions representing the cuts and then subtract it from 1, which represents the whole ribbon.

The first cut removes 5/6 of the ribbon, leaving 1 - 5/6 = 1/6 of the original length. The second cut removes 2/3 of the remaining length, leaving 1/6 * (1 - 2/3) = 1/6 * 1/3 = 1/18 of the original length.

So, the remaining fraction of the ribbon is 1 - 1/6 - 1/18 = 12/18 - 3/18 - 2/18 = 7/18.

Therefore, 7/18 of the ribbon is left after the two cuts.

I hope this helps! If you have any further questions, feel free to ask.