Rational Numbers Class 8 Worksheet

# Rational Numbers Class 8 Worksheet

Rational Numbers Class 8 Worksheets play a vital role to revise the maths concepts.

## Rational Numbers Class 8 Worksheet with Answers

1. Express each of the following rational numbers in decimal form.

a. 23/100

b. 7/50

c. 37/25

d. 19/8

2. Express 4/7 as a rational number with

a. numerator 8

b. numerator –12

c. denominator 49

d. denominator –63

3. Which of the following rational numbers can be represented as non-terminating decimals?

a. 15/25

b. 7/100

c. 9/75

d. 25/48

4. Find three rational numbers equivalent to each one of the following rational numbers.

a. 3/7

b. −5/13

c. −4/−11

d. 7/−10

a. 4/5 + 7/10

b. 6/15 + 9/25

c. (-9/10) + (-2/15)

d. 11/25 + (-29/50)

6. Subtract the following.

a. 3/5 - 4/10

b. 11/12 - 9/24

c. (-11/18) - (-5/54)

d. 6/13 - (-8/26)

7. Simplify:

a. 3/4 + (-4/5)

b. 3/10 + 8/25

c. 4/18 + 12/-27

d. −3/17 + 5/68

8. Add and express the sum as a mixed fraction if required:

a. ½ + 1/4 – 3/5

b. 2/5 - ¾ − 1/5

c. 7/15 + 7/10 – 12/25

d. 2/5 - 8/20 + 7/10

9. What number should be added to –1/3 to get 5/7?

10. The sum of two rational numbers is –5/8. If one of the numbers is −4/7, find the other number.

11. The sum of two rational numbers is 8/9. If one of the numbers is 6/11, find the other number.

12. Multiply.

a. 15/14 by 21/15

b. 12/18 by 36/48

c. 13/14 by 7/13

d. 5/6 by 18/25

13. Find the reciprocal of the following rational numbers.

a. 3/13

b. -8/5

c. 7/17

d. -11/23

14. Divide.

a. 3 by 1/4

b. 3/7 by 48/21

c. −3/8 by 15/16

d. 7/8 by 35/40

15. The product of two rational numbers is 6/25. If one of the rational numbers is –3/5, find the other rational number.

16. By what number should −6/9 be multiplied to get 12/45?

17. From a wire of length 12 m 25 cm, pieces of equal length are cut off. How many pieces are cut off, if each piece is 7/12 metre long?

1. a. 0.23            b. 014

c. 1.48            d. 2.375

2. a. 8/14           b. -12/-21

c. 28/49         d. -36/-63

3. a. Terminating decimal

b. Terminating decimal

c. Non-terminating decimal

d. Non-terminating decimal

4. a. 6/14, 9/21, 12/28

b. -10/26, -15/39, -20/52

c. 8/22, 12/33, 16/44

d. -14/20, -21/30, -28/40

5. a. 15/10          b. 57/75

c. -31/30         d. -7/50

6. a. 2/10            b. 13/24

c. -28/54         d. 20/26

7. a. -1/20          b. 31/50

c. -12/54        d. -7/68

8. a. 3/20           b. -11/20

c. 103/150     d. 7/10

9. 22/21

10. -3/56

11. 34/99

12. a. 3/2           b. ½

c. ½              d. 3/5

13. a. 13/3         b. -5/8

c. 17/7          d. -23/11

14. a. 12           b. 7/16

c. -2/5         d. 1

15. -2/5

16. -2/5

17. 21 pieces

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