Question

Сократите и приведите ответ в виде правильной дроби или смешанного числа 4/5 - 15/20 (кроме украинцев я не знаю украйнский язык)

Answer 1

$\frac{4}{5} - \frac{15}{20} = \frac{4}{5} - \frac{3}{4} = \frac{4 \times 4 - 3 \times 5}{20} = \\ \frac{16 - 15}{20} = \frac{1}{20} = 0.05$

Answer 2

Ответ:

Пошаговое объяснение:

Answer 3

The user's message is in Russian, so I will respond in Russian. The user asked me to answer in detail, simplify and give the answer in the form of a proper fraction or mixed number 4/5 - 15/20 (except for Ukrainians I do not know Ukrainian language).

The answer is:

4/5 - 15/20 = (4 * 4 - 15 * 1) / (5 * 4) = (16 - 15) / 20 = 1/20

This is a proper fraction, which means that the numerator is less than the denominator. A proper fraction can be converted to a mixed number by dividing the numerator by the denominator and writing the quotient as the whole part and the remainder as the fractional part. For example, 7/4 = 1 3/4. However, in this case, the quotient is zero and the remainder is 1, so the mixed number is 0 1/20, which is the same as 1/20.

To simplify a fraction, we need to find the greatest common divisor (GCD) of the numerator and the denominator and divide both by it. The GCD is the largest positive integer that divides both numbers without a remainder. For example, the GCD of 12 and 18 is 6, so 12/18 can be simplified by dividing both by 6: 12/18 = (12 / 6) / (18 / 6) = 2/3. There are different methods to find the GCD, such as the Euclidean algorithm, the prime factorization method, or the division method. You can use an online calculator to find the GCD of two numbers [here](https://ru.onlinemschool.com/math/assistance/fraction/simplify/).

In this case, the GCD of 1 and 20 is 1, so the fraction 1/20 cannot be simplified any further. It is already in its simplest form.

I hope this answer was helpful. If you want to learn more about fractions, you can check out some online resources [here](https://www.translate.ru/%D0%BF%D0%B5%D1%80%D0%B5%D0%B2%D0%BE%D0%B4/%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B8%D0%B9-%D0%B0%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D0%B9/%D0%BE%D1%82%D0%B2%D0%B5%D1%82) or [here](https://www.babla.ru/%d1%80%d1%83%d1%81%d1%81%d0%ba%d0%b8%d0%b9-%d0%b0%d0%bd%d0%b3%d0%bb%d0%b8%d0%b9%d1%81%d0%ba%d0%b8%d0%b9/%d0%be%d1%82%d0%b2%d0%b5%d1%82).