Difficulty: Medium
Average Score: 93%
Entry Exam
Subtract 7 7/10 - 3 4/5 =
Correct answer
D
Rationale
To subtract mixed numbers, convert them to improper fractions. 7 7/10 = 77/10 and 3 4/5 = 19/5. When subtracting 77/10 - 19/5, we get 31/10, which simplifies to 3 & 1/10. Therefore, the correct answer is 3 & 9/10. The mistake in the original question was in option A, which incorrectly stated 4 & 1/10 instead of the correct answer 3 & 9/10.