Author note — to cover

Solve equations with numeric denominators, e.g. x/3 + 2 = 5, (x + 2)/3 = 4 and (2x − 1)/3 = (x + 2)/4, multiplying every term by the common denominator, whole-number terms included. Unknowns in the denominator lead to quadratics and are Higher via A18 rearrangement. Both tiers. (A17)

• Fluency — direct questions on equations with fractions, limited to this lesson's stated scope (4 questions).
• Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
• Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).