1. A rational number is defined as a number that can be expressed in the form \( \dfrac{p}{q} \), where \(p\) and \(q\) are integers and
(a) \(q = 0\)
(b) \(q = 1\)
(c) \(q \neq 1\)
(d) \(q \neq 0\)
Which of the following rational numbers is positive?
(a) \(-\dfrac{8}{7}\)
(b) \(\dfrac{19}{-13}\)
(c) \(\dfrac{-3}{-4}\)
(d) \(\dfrac{-21}{13}\)
Which of the following rational numbers is negative?
(a) \(-\dfrac{3}{7}\)
(b) \(\dfrac{-5}{-8}\)
(c) \(\dfrac{9}{8}\)
(d) \(\dfrac{3}{-7}\)
In the standard form of a rational number, the common factor of numerator and denominator is always:
(a) 0
(b) 1
(c) -2
(d) 2
Which of the following rational numbers is equal to its reciprocal?
(a) 1
(b) 2
(c) \(\dfrac{1}{2}\)
(d) 0
The reciprocal of \(\dfrac{1}{2}\) is
(a) 3
(b) 2
(c) -1
(d) 0
The standard form of \(-\dfrac{48}{60}\) is
(a) \(\dfrac{48}{60}\)
(b) \(\dfrac{-60}{48}\)
(c) \(-\dfrac{4}{5}\)
(d) \(\dfrac{-4}{-5}\)
Which of the following is equivalent to \(\dfrac{4}{5}\)?
(a) \(\dfrac{5}{4}\)
(b) \(\dfrac{16}{25}\)
(c) \(\dfrac{16}{20}\)
(d) \(\dfrac{15}{25}\)
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) \(-\dfrac{1}{2}\)
(b) 0
(c) \(\dfrac{1}{2}\)
(d) -2