About this page: Rational and Irrational numbers with Practice Set 1.2

Here is the Rational numbers & Irrational numbers Practice set, We have solved the Practice set 1.2 . Before that we will learn about Rational and Inrrational numbers.

How to compare Rational Numbers?

1)For any pair of numbers on a number line the number to the left is smaller than the other.

2)If the numerator and the denominator of a rational number is multiplied by any non zero number then the value of rational number does not change. It remains the same. That is,45⁶⁶/₉₈=^ka–_kb,(k=not zero).

3)Useful rules to compare two rational numbers.

If ^a–_b and^c–_d are rational numbers such that b and d are positive, and

1) if a x d < b x c then ^a–_b <^c–_d.

2) if a x d = b x c then a / b = c / d

3) if a x d > b x c then a / b > c / d

Practice Set 1.2

Q.1.Compare the following numbers.

1)-7,-2

Ans: On a number line the number to the left is smaller than the other.Therefore, -7<-2 .