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1970 IMO Longlists
51
51
Part of
1970 IMO Longlists
Problems
(1)
(a+p)/(b+p) - a/b = 1/p^2. Find all fractions a/b (ILL 1970)
Source:
5/22/2011
Let
p
p
p
be a prime number. A rational number
x
x
x
, with
0
<
x
<
1
0 < x < 1
0
<
x
<
1
, is written in lowest terms. The rational number obtained from
x
x
x
by adding
p
p
p
to both the numerator and the denominator differs from
x
x
x
by
1
/
p
2
1/p^2
1/
p
2
. Determine all rational numbers
x
x
x
with this property.