What is 7/12 - 2/9?
Answer and explanation
Correct answer: D. 13/36
- Step 1: A common denominator of 12 and 9 is 36. Step 2. 7/12 = 21/36 and 2/9 = 8/36, so 21/36 - 8/36 = 13/36. Answer: 13/36. Why not the others: 5/3: This subtracts the numerators (7 - 2) and the denominators (12 - 9) separately. 29/36: This adds the two fractions instead of subtracting them. 5/21: This subtracts the numerators but adds the denominators.
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