# DAV Class 7 Maths Chapter 1 Worksheet 4 Solutions

The DAV Class 7 Maths Book Solutions Pdf and DAV Class 7 Maths Chapter 1 Worksheet 4 Solutions of Rational Numbers offer comprehensive answers to textbook questions.

## DAV Class 7 Maths Ch 1 WS 4 Solutions

Question 1.
Find the absolute value of the following rational numbers.
(i) $$\frac{-1}{5}$$
Absolute value of $$\frac{-1}{5}=\left|\frac{-1}{5}\right|=\frac{1}{5}$$

(ii) $$\frac{7}{9}$$
Absolute value of $$\frac{7}{9}=\left|\frac{7}{9}\right|=\frac{7}{9}$$

(iii) $$\frac{0}{-4}$$
Absolute value of $$\frac{0}{-4}=\left|\frac{0}{-4}\right|=\frac{0}{4}$$ = 0

(iv) $$\frac{-3}{-2}$$
Absolute value of $$\frac{-3}{-2}=\left|\frac{-3}{-2}\right|=\frac{3}{2}$$ Question 2.
Compare the absolute values of the rational numbers in the following pairs:
(i) $$\frac{3}{-7}, \frac{-3}{7}$$
Absolute values of $$\frac{3}{-7}, \frac{-3}{7}$$ are $$\left|\frac{3}{-7}\right|,\left|\frac{-3}{7}\right|$$
⇒ $$\frac{3}{7}, \frac{3}{7}$$

(ii) $$\frac{-5}{7}, \frac{4}{3}$$
Absolute values of $$\frac{-5}{7}, \frac{4}{3}$$ are $$\left|\frac{-5}{7}\right|,\left|\frac{4}{3}\right|$$
= $$\frac{5}{7}, \frac{4}{3}$$

(iii) $$\frac{-4}{5}$$, -3
Absolute values of $$\frac{-4}{5}$$, -3 are $$\left|\frac{-4}{5}\right||-3|$$
= $$\frac{4}{5}$$, 3

Question 3.
Find all the rational numbers whose absolute value is
(i) $$\frac{2}{5}$$
$$\frac{-2}{5}, \frac{2}{-5}, \frac{-2}{-5}$$
$$\frac{0}{-4}, \frac{0}{4}, \frac{0}{1}, \frac{0}{-1}$$
(iii) $$\frac{3}{4}$$
$$\frac{-3}{4}, \frac{3}{-4}, \frac{-3}{-4}$$