Rational Numbers
23 solved questions from Class 7 Mathematics, each with the full working. Tap any question to see the step-by-step solution.
- 1 Find the HCF of 24 and 36 using prime factorisation. medium MCQ Prime Factorisation and HCF
- 2 Express 140 as a product of its prime factors. medium MCQ Prime Factorisation
- 3 Is √2 a rational or irrational number? medium MCQ Irrational Numbers
- 4 What is the LCM of 12 and 15? medium MCQ LCM Calculation
- 5 Find the value of 5³ × 5² using exponent laws. medium MCQ Exponents and Powers
- 6 What is the multiplicative inverse of -4/5? medium MCQ Rational Numbers
- 7 Evaluate (-1)^100. medium MCQ Exponents
- 8 Is zero (0) a positive or negative integer? medium MCQ Integers
- 9 Simplify: 3/4 + 5/6. medium MCQ Fractions Addition
- 10 What is the predecessor of 10,000? medium MCQ Predecessor and Successor
- 11 What is the domain, range, or fundamental theorem introduced in 'Rational Numbers' (Class 7 Mathematics)? medium MCQ Functions & Theorems
- 12 What is the derivative or integral formula associated with 'Rational Numbers'? medium MCQ Calculus & Formulae
- 13 How do you find the solution set or optimum value in 'Rational Numbers'? medium MCQ Problem Solving & Optimization
- 14 Which of the following numbers is NOT a rational number? easy MCQ 1 mark Rational vs Irrational numbers
- 15 Compute 7/8 - 3/4. easy 1 mark Subtracting fractions
- 16 Find the simplified value of 5/6×12/5. medium 2 marks Multiplying fractions
- 17 Compute 5/12 + 3/4. easy 1 mark Adding fractions
- 18 Solve for x in -7/8x + 1/3 = -5/12. medium 2 marks Solving linear equations with fractions
- 19 Express 41/6 as an improper fraction and subtract 7/9 from it. Simplify the result. hard 3 marks Subtracting fractions and mixed numbers
- 20 Which of the following is NOT a rational number? (a) 0.75 (b) 2/3 (c) √2 (d) 5/2 hard MCQ 3 marks Identifying rational versus irrational numbers
- 21 Solve for x in the equation -5/6 x + 1/3 = -1/4. hard 3 marks Solving linear equations with rational coefficients
- 22 Express 3 1/4 as an improper fraction. easy 1 mark Converting mixed number to improper fraction
- 23 Find the sum of the fractions 11/15 and 2/5. medium 2 marks Adding fractions with different denominators