( 3 / 2 + 4 / 3 + 5 / 4 ) ^ 2 × 2 / 4 - 1 / 4 - 1 / 6 - 1 / 12 =
( 18 / 12 + 16 / 12 + 15 / 12 ) ^ 2 × 2 / 4 - 1 / 4 - 1 / 6 - 1 / 12 =
( 34 / 12 + 15 / 12 ) ^ 2 × 2 / 4 - 1 / 4 - 1 / 6 - 1 / 12 =
( 49 / 12 ) ^ 2 × 2 / 4 - 1 / 4 - 1 / 6 - 1 / 12 =
2401 / 144 × 2 / 4 - 1 / 4 - 1 / 6 - 1 / 12 =
4802 / 576 - 1 / 4 - 1 / 6 - 1 / 12 =
4802 / 576 - 144 / 576 - 96 / 576 - 48 / 576 =
4658 / 576 - 96 / 576 - 48 / 576 =
4562 / 576 - 48 / 576 = 4514 / 576