Exercise 1.1 (Revised) - Chapter 1 - Rational Numbers - Ncert Solutions class 8 - Maths
Updated On 26-08-2025 By Lithanya
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NCERT Solutions for Class 8 Maths Chapter 1 - Rational Numbers | Comprehensive Guide
Ex 1.1 Question 1.
Name the property under multiplication used in each of the following:
(i) $\frac{-4}{5} \times 1=1 \times \frac{-4}{5}$
(ii) $-\frac{13}{17} \times \frac{-2}{7}=\frac{-2}{7} \times \frac{-13}{17}$
(iii) $\frac{-19}{29} \times \frac{29}{-19}=1$
Answer.
(i) 1 is the multiplicative identity.
(ii) commutativity property.
(iii) Multiplicative Inverse property.
Ex 1.1 Question 2.
Tell what property allows you to compute
$
\frac{1}{3} \times\left(6 \times \frac{4}{3}\right) \text { as }\left(\frac{1}{3} \times 6\right) \times \frac{4}{3} \text {. }
$
Answer.
By using associative property of multiplication, we will compute as $a \times(b \times c)=(a \times b) \times c$.
Ex 1.1 Question 3.
The product of two rational numbers is always a _______
Answer:
Rational Number
