stonecold wrote:
Which of the following fractions can be written as the difference of reciprocals of two consecutive integers?
A. 1/100
B. 1/121
C. 1/45
D. 1/56
E. 3/72
1/56 = 1/7-1/8
IMO D
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Which of the following fractions can be written as the difference of reciprocals of two consecutive integers?
A. 1/100
B. 1/121
C. 1/45
D. 1/56
E. 3/72
1/56 = 1/7-1/8
IMO D
Posted from my mobile device
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