Multiple choice general knowledge math & puzzles 3/5 x ? = 2/5 2/3 2/5 3/5 1/7 Reveal answer Fill a bubble to check yourself A Correct answer Explanation To solve 3/5 × ? = 2/5, divide both sides by 3/5: ? = (2/5) ÷ (3/5) = (2/5) × (5/3) = 2/3. Multiplying 3/5 by 2/3 gives (3×2)/(5×3) = 6/15 = 2/5, which checks out.