Convert decimal 0.79 to fraction ( the last digit 9 repeating)

Marcelofreires asked Jul 6, 2023

354,338 views

8 votes

Marcelofreires asked Jul 6, 2023

3.2k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

17 votes

Given:

$\text{Let x=0.7999}\ldots\text{ (1)}$

Multiply euation (1) by 10 on both sides

$10x=7.999\ldots\text{ (2)}$

Multiply equation (1) by 100 on both sides

$100x=79.999\ldots\text{ (3)}$

Subtract equation(2) from equation(3)

2.7k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers