Start learning →

In a rational number a/b, which value is not allowed for b?

A0
B-1
C2
D1
Answer & Solution
Correct answer: A. 0
Division by zero is undefined, so the denominator cannot be zero.
Practise this question with Quill — RRB NTPC →

Keep practising Fractions

Browse all Fractions questions for RRB NTPC, or explore more Mathematics topics.

Start a Fractions lesson →
Related questions
RRB NTPC · Fraction Concepts and ValuesCompute the sum of fractions: 1/3 + 1/6. Express the result in simplest form:Reduce the fraction 18/24 to its simplest lowest terms:RRB NTPC · Sort Proper and ImproperIrreducible fraction uniqueness is used to prove thatEvery rational number has a unique representation as an irreducible fraction with aIn an irreducible fraction a/b, what is the greatest common divisor of a and b?To reduce 120/90 to lowest terms in a single step, divide both terms by their GCD of