Ncert exemplar solutions mathematics class 7 Solutions for Chapter 8 rational numbers

Exercises in Chapter 8 rational numbers Grade 7

Rational Numbers - Exercise

Questions in Rational Numbers - Exercise

A rational number is defined as a number that can be expressed in the form p/q, where p and q are integers and

(a) q = 0 (b) q = 1 (c) q ≠ 1 (d) q ≠ 0

Which of the following rational numbers is positive?

(a) (-8/7) (b) (19/-13) (c) (-3/-4) (d) (-21/13)

Which of the following rational numbers is negative?

(a) – (-3/7) (b) (-5/-8) (c) 9/8 (d) (3/-7)

Which of the following rational numbers is equal to its reciprocal?

(a) 1 (b) 2 (c) ½ (d) 0

The reciprocal of ½ is

(a) 3 (b) 2 (c) – 1 (d) 0

The standard form of -48/60 is

(a) 48/60 (b) -60/48 (c) -4/5 (d) -4/-5

Which of the following is equivalent to 4/5?

(a) 5/4 (b) 16/25 (c) 16/20 (d) 15/25

How many rational numbers are there between two rational numbers?

(a) 1 (b) 0 (c) unlimited (d) 100

In the standard form of a rational number, the denominator is always a

(a) 0 (b) negative integer (c) positive integer (d) 1

To reduce a rational number to its standard form, we divide its numerator and denominator by their

(a) LCM (b) HCF (c) product (d) multiple

Which is greater number in the following:

(a) -½ (b) 0 (c) ½ (d) -2

The standard form of (-8/-36) is ________________.

The standard form of 18/-24 is _____________.

On a number line, -½ is to the ______ of zero (0).

On a number line, 4/3 is to the __________of zero (0).

-½ is __________ than 1/5.

-3/5 is ______________ than 0.

-16/24 and 20/-16 represent ________ rational numbers.

-27/45 and -3/5 represent ___________ rational numbers.

Additive inverse of 2/3 is ______.

(-3/5) + (2/5) = ________.

(-5/6) + (-1/6) = _________.

(3/4) × (-2/3) = __________.

(-5/3) × (-3/5) = ________________.

(1/2) = (6/ __________)

(-2/9) – (7/9) = ____________