Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

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Class-7 DAV Maths Chapter 2 Worksheet 5 Operations on Rational Numbers Question and Answer

1. Divide.

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer (i):

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer (ii):

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer (iii):

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer (iv):

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

2. By taking x = 3/4 and y = -5/6, verify that x/y != y/x.

Answer 2:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

3. The product of two rational numbers is -3/7. If one of the numbers is 5/21, find the other.

Answer 3:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

4. With what number should we multiply -36/35, so that the product be -6/5?

Answer 4:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

5. By taking x= -5/3. y = 2/7 and z = 1/-4, verify that-

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer (i):

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer (ii):

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

Answer (iii):

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics

6. From a rope of the length 40 meters, a man cuts some equal sized pieces. How many pieces can be cut if each piece is of 4/9 metres length?

Answer 6:

Chapter 2 | Operations On Rational Numbers | Class-7 DAV Secondary Mathematics