Identify four different non-zero numbers, a, b, c, and d, so that
a/b + c/d = (a+c) / (b+d)

Unusual Property
Identify two fractions whose sum is equal to the sum of the numerators divided by the sum of the denominators.

Identify two fractions whose sum is equal to the sum of the numerators divided by the sum of the denominators.
Identify four different non-zero numbers, a, b, c, and d, so that
a/b + c/d = (a+c) / (b+d)