Question

Число увеличили на 1/5 часть его. на какую часть надо уменьшить полученное число число, что бы получить первоеачальное?помогите срочно!!!заранее огромное спасибо!!!

Answer 1

$x+\frac15x=\frac65x\\\frac65x\cdot\frac56=x\\x-\frac56x=\frac16x$

Нужно уменьшить на 1/6.

Answer 2

Calculating the Decrease Needed to Return to the Original Number

To calculate the decrease needed to return to the original number after increasing it by 1/5, we can use the following steps:

1. Increase the Number by 1/5: - If we have a number, increasing it by 1/5 means adding 1/5 of the number to the original number.

2. Calculate the Decrease Needed: - To find the decrease needed to return to the original number, we need to determine what fraction of the increased number needs to be subtracted.

Calculation Steps

1. Increase the Number by 1/5: - Let's assume the original number is represented by x. - Increasing the number by 1/5 means adding 1/5 of the original number to itself, which can be represented as x + (1/5)x.

2. Calculate the Decrease Needed: - To find the decrease needed to return to the original number, we need to determine what fraction of the increased number needs to be subtracted. This can be calculated as (1/5)x / (x + (1/5)x).

Final Calculation

So, to find the decrease needed to return to the original number after increasing it by 1/5, we need to subtract (1/6)x from the increased number.

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