GCSE Maths Practice: substitution

Question 7 of 10

This question practices substitution into a fractional algebraic expression involving powers of variables.

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

Choose one option:

Calculate numerator and denominator separately before dividing. Check your powers carefully.

Compute squares first, then multiply terms, and simplify the fraction step by step.