4 out of 3 + 16 out of 15 + 36 out of 35 +. + 196 out of 195 + 266 out of 255

4 out of 3 + 16 out of 15 + 36 out of 35 +. + 196 out of 195 + 266 out of 255

4 / 3 + 16 / 15 + 36 / 35 + 64 / 63 +. + 196 / 195
=1+1/3+1+1/15+1+1/35+…… +1+1/195
=1*65+（1/3+1/15+1/35+1/63+…… +1/195）
=65+（1-1/3）*1/2+（1/3-1/5）*1/2+…… +（1/13-1/15）*1/2
=65+（1-1/3+1/3-1/5+…… +1/13-1/15）*1/2
=65+（1-1/15）*1/2
=65+7/15
=65 and 7 / 15

Elden Ring Premiere

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