GCSE Maths Practice: substitution

Question 8 of 10

This question practices substitution into a fractional algebraic expression involving powers and simplification.

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\( \text{Evaluate: } \frac{3a^2b}{2b^2} \text{ when } a = 4,\ b = 2 \)

Choose one option:

Evaluate numerator and denominator separately before dividing. Check each calculation carefully.

Compute the powers first, then multiply terms in the numerator, and simplify the fraction step by step.