## ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 3 Rational Numbers Ex 3.3

Question 1.

Add the following pairs of rational numbers:

Solution:

Question 2.

Find the sum:

Solution:

Question 3.

Subtract:

Solution:

Question 4.

Find:

Solution:

Question 5.

The sum of two rational numbers is \(\frac { 2 }{ 5 }\) if one of them is \(\frac { -4 }{ 7 }\), find the other.

Solution:

Sum of two rational numbers = \(\frac { 2 }{ 5 }\)

One of them = \(\frac { -4 }{ 7 }\)

Question 6.

What rational number should be added to \(\frac { -5 }{ 12 }\) to get \(\frac { -7 }{ 8 }\)?

Solution:

Sum of two rational numbers = \(\frac { -7 }{ 8 }\)

One number = \(\frac { -5 }{ 12 }\)

Question 7.

What rational number should be subtracted from \(\frac { -2 }{ 3 }\) to get \(\frac { -5 }{ 6 }\)?

Solution:

Question 8.

Find the product:

Solution:

Question 9.

Find the value of:

Solution:

Question 10.

The product of two rational numbers is \(\frac { 18 }{ 35 }\) If one of them is \(\frac { -2 }{ 5 }\), find the other.

Solution:

Product of two rational numbers = \(\frac { 18 }{ 35 }\)

One of them = \(\frac { -2 }{ 5 }\)

Question 11.

Find the value of:

Solution:

Question 12.

Find the reciprocal of the following:

Solution: