![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
What number should be added to $\frac{−5}{7}$ to get $\frac{−2}{3}$?
Given :
The given numbers are $\frac{-5}{7}$ and $\frac{-2}{3}$.
To do :
We have to find the number that should be added to $\frac{-5}{7}$ to get $\frac{-2}{3}$.
Solution :
Let the number to be added to $\frac{-5}{7}$ to get $\frac{-2}{3}$ be $x$.
This implies,
$\frac{-5}{7}+x=\frac{-2}{3}$
$x =\frac{-2}{3} - (\frac{-5}{7})$
$x =\frac{-2}{3} + \frac{5}{7}$
$x = \frac{[-2(7)+5(3)]}{21}$
$x = \frac{(-14+15)}{21}$
$x = \frac{1}{21}$.
The number to be added to $\frac{-5}{7}$ to get $\frac{-2}{3}$ is $\frac{1}{21}$.    
Advertisements