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NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Ex 1.1

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NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Exercise 1.1 - FREE PDF Download

Students can view and download the NCERT Solutions for Class 8 Maths Chapter 1 Exercise 1.1 Rational Numbers by clicking on the link provided below. Students can go over the fundamental ideas of rational numbers and their many features in Ex 1.1 Class 8 Maths NCERT solutions.

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By answering the NCERT Solutions for Class 8 Maths in the textbook regularly, students can build their confidence as the answers are created per the CBSE Class 8 Maths Syllabus and requirements. Therefore, students who want to do well on their maths exam should practice these Class 8 Maths 1.1 NCERT Solutions without fail.

Access NCERT Solutions for Maths Class 8 Chapter 1 – Rational Numbers

Exercise 1.1

1. Name the property under multiplication used in each of the following:

i. $\dfrac{-4}{5}\times 1=1\times\dfrac{-4}{5}=\dfrac{-4}{5}$

Ans: Since, after multiplying by 1, we are getting the same number.

Therefore, 1 is the multiplicative identity.


ii.$-\dfrac{13}{17}\times \dfrac{-2}{7}=\dfrac{-2}{7}\times\dfrac{-13}{17}$

Ans: Since, $a\times b = b\times a$.

Therefore, it is a Commutative property.


iii. $\dfrac{-19}{29}\times \dfrac{29}{-19}=1$

Ans: Since, $-a\times \dfrac{1}{-a}=1$

Therefore, the property is a Multiplicative inverse.


2. Tell what property allows you to compute 

$\dfrac{1}{3}\times(6 \times \dfrac{4}{3})$ as $(\dfrac{1}{3}\times 6)\times \dfrac{4}{3} $

Ans: Since, $a\times(b\times c)= (a \times b)\times c$.

Therefore, it's an associative property.


3. The product of two rational numbers is always a __________.

Ans: The product of two rational numbers is always a Rational number.


Conclusion

NCERT Solutions for Class 8 Maths Chapter 1 Exercise 1.1 Solution PDF of Rational Numbers, focuses on essential concepts such as equivalent rational numbers, their simplification, and representation on a number line. In Class 8 Exercise 1.1 the key aspects include understanding the distributive, associative, and commutative properties, identifying and simplifying equivalent forms, finding additive and multiplicative inverses, and comparing rational numbers.


CBSE Class 8 Maths Chapter 1 Other Study Materials



Chapter-Specific NCERT Solutions for Class 8 Maths

Given below are the chapter-wise NCERT Solutions for Class 8 Maths. Go through these chapter-wise solutions to be thoroughly familiar with the concepts.



Additional Study Materials for CBSE Class 8 Maths

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FAQs on NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Ex 1.1

1. What is the stepwise method to solve Exercise 1.1 in NCERT Solutions for Class 8 Maths Chapter 1?

To solve Exercise 1.1 of Class 8 Maths Chapter 1 (Rational Numbers) as per the CBSE 2025–26 NCERT textbook, start by reading the question carefully, identify the operation required (addition, subtraction, etc.), and follow the NCERT answer pattern of writing each step clearly. Use LCM where needed for denominators and simplify the answer, matching the official answer format.

2. Are the solutions for Class 8 Maths Chapter 1 Exercise 1.1 provided here CBSE approved?

Yes, all solutions for Class 8 Maths Chapter 1 Exercise 1.1 are prepared strictly following the latest CBSE 2025–26 NCERT guidelines. Each answer is presented in NCERT pattern with stepwise calculations to ensure full marks in exams.

3. Where can I download the Class 8 Maths Chapter 1 PDF with answers?

You can download the Class 8 Maths Chapter 1 PDF with answers from CBSE and NCERT-aligned educational platforms like Vedantu. These PDFs provide complete, stepwise solutions to all exercises, making it easy to practice and verify your answers.

4. How do I solve rational number addition problems given in Exercise 1.1 using the NCERT pattern?

To solve rational number addition problems as per NCERT pattern, first find the LCM of the denominators, convert each rational number to equivalent forms with the common denominator, add the numerators, and express the result in its simplest form, just as the NCERT textbook demonstrates stepwise.

5. Who prepares the official NCERT Solutions for Class 8 Maths Chapter 1 Exercise 1.2?

The official NCERT Solutions are prepared by subject experts with extensive experience, adhering to the CBSE 2025–26 syllabus and answer key structure. Solutions provided here are designed to exactly match the NCERT textbook’s official answer format.

6. What should I do if my answer to an intext question differs from the NCERT solution?

If your answer differs, recheck your calculations stepwise, ensure you have followed the NCERT answer pattern, and cross-verify key steps such as LCM calculation and simplification. Referring to the stepwise explanation in the official solution can highlight where you missed a step.

7. Can I use these NCERT Solutions for my Term 1 Class 8 Maths exams?

Yes, these NCERT Solutions for Class 8 Maths Chapter 1 are fully CBSE-approved and cover all exercises and intext questions for Term 1 and the entire 2025–26 academic session. Practicing with these solutions helps secure better scores in official school assignments and CBSE term exams.

8. How do NCERT Solutions for Exercise 1.2 help with understanding rational number multiplication?

NCERT Solutions for Exercise 1.2 provide a detailed, stepwise explanation for multiplying rational numbers. Each step matches the NCERT answer format—multiplying numerators and denominators separately, simplifying the results, and expressing the answer in its lowest terms, helping students master this concept for CBSE exams.

9. Are the stepwise solutions for Exercise 1.2 and 1.1 in the PDF the same as in the NCERT textbook?

Yes, the stepwise solutions in the PDF strictly follow the NCERT textbook’s format for Class 8 Maths Chapter 1. Every calculation, formula, and simplification is explained just as it is in the CBSE 2025–26 approved book, ensuring complete accuracy.

10. Why is following the official NCERT answer format important in Class 8 Maths Chapter 1 solutions?

Following the official NCERT answer format is essential because CBSE examiners award marks for every correct step shown according to NCERT guidelines. Presenting the answer in a structured, textbook-aligned way ensures clarity, prevents marks deduction, and helps in understanding rational numbers thoroughly.

11. Why is finding the lowest common denominator important when solving Exercise 1.1 rational number problems?

Finding the lowest common denominator is crucial because it allows you to rewrite rational numbers with the same denominator, making addition and subtraction straightforward and following the exact NCERT solution steps required by CBSE guidelines.

12. If my textbook uses a different example than the NCERT Solutions PDF, which should I follow for school exams?

Always prioritize the NCERT Solutions and examples, as school assessments and CBSE exams are based directly on the NCERT textbook content and format as per the 2025–26 syllabus.

13. How are answers in the NCERT Solutions for rational numbers checked for accuracy?

Answers in the NCERT Solutions are cross-verified by multiple subject experts. Each solution includes stepwise calculations, correctness checks at every stage, and simplification as per the CBSE-approved answer key, ensuring high accuracy for Class 8 Chapter 1.