English

Simplify: "6k"/7 - ("8k"/9 - "K"/3) - Mathematics

Advertisements
Advertisements

Question

Simplify: `"6k"/7 - ("8k"/9 - "k"/3)`

Sum

Solution

`"6k"/7 - ("8k"/9 - "k"/3)`

`= ("54k" - ("56k" - "21k"))/63`   ...(LCM of 7,9,3 = 63)

`= ("54k" - ("35k"))/63`

`= ("54k" - "35k")/63 = "19k"/63` 

shaalaa.com
Performs Operations (Addition and Subtraction) on Algebraic Expressions with Integral Coefficients Only.
  Is there an error in this question or solution?
Chapter 11: Fundamental Concepts (Including Fundamental Operations) - Exercise 11 (E)

APPEARS IN

Selina Concise Mathematics [English] Class 7 ICSE
Chapter 11 Fundamental Concepts (Including Fundamental Operations)
Exercise 11 (E) | Q 11
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×