Question
Calculate 2/3 + 1/4 and give your answer as a fraction in its simplest form.
Answer: 11/12
Method: common denominator is 12. 2/3 = 8/12. 1/4 = 3/12. 8/12 + 3/12 = 11/12. (Already simplest — 11 is prime.)
Mark: B1 method, B1 answer.
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