Question
3.87 - 2.59 = ?
Answer: Option D
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3.87 - 2.59 = (3 + 0.87) - (2 + 0.59)
= \(\left(3+\frac{87}{99}\right)-\left(2+\frac{87}{99}\right)\)
= \(1+\left(\frac{87}{99}-\frac{59}{99}\right)\)
= \(1+\frac{28}{99}\)
= 1.28
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