In a quiz each correct answer scores $\frac{3}{2}$ marks and each wrong answer scores $\frac{-1}{2}$ mark. Rekha gets 8 questions right and 6 wrong. What is her total score?

**Addition / subtraction**: same denominator → add/subtract numerators. Different denominator → bring to common denominator first.

**Multiplication**: (p/q) × (r/s) = (p×r)/(q×s). Sign rule from integers applies (same → +, different → −).

**Division**: multiply by the reciprocal. (p/q) ÷ (r/s) = (p/q) × (s/r), provided r ≠ 0.

Nothing new compared to fractions — just keep track of signs.