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![Simplify the expression:(−1/4)+(5/12) - [Class 9 Ganita Manjari I] - Exercise Set 3.4](https://cdn.teachoo.com/6f4e1ca8-f33f-453d-91fa-afaac93feedb/slide86.jpg)
Ex 3.4, 3
Last updated at May 9, 2026 by Teachoo
Class 9
Chapter 3 Class 9 - The World of Numbers (Ganita Manjari I)
- The Human Need to Count
- Exercise Set 3.1
- The Revolution of Śhūnya
- Integers
- Exercise Set 3.2
- Rational Numbers
- Exercise Set 3.3
- Rational Numbers on the Number Line
- Absolute Value of a Rational Number
- Rational Numbers between two Rational numbers
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Exercise Set 3.4
- Irrational Numbers
- Construction of Length √n on Number line
- The Story of Pi (π) and Madhava’s Infinite Series
- Real Numbers & Imaginary Numbers
- Decimal Expansion of Real Numbers
- Magic of Cyclic Numbers
- Constructing a Square Root Spiral
- Exercise Set 3.5
- End-of-Chapter Exercises
Transcript
Ex 3.4, 3 Simplify the expression: (−1/4)+(5/12). Since denominators of both fractions are different Frist, we make denominators same Common denominator = LCM of 4 & 12 = 12 So, our expression becomes (−𝟏/𝟒)+(𝟓/𝟏𝟐)=(−1)/4 ×3/3+5/12 =(−𝟑)/𝟏𝟐+𝟓/𝟏𝟐 =(−3 + 5)/12 =(5 − 3)/12 =𝟐/𝟏𝟐 Simplifying fraction =𝟏/𝟔 =(5 − 3)/12 =𝟐/𝟏𝟐 Simplifying fraction =𝟏/𝟔
