간편 계산 (224 + 1 / 222) x1 / 223 1 / 128 + 1 / 64 + 1 / 32 +.. + 1 / 4

간편 계산 (224 + 1 / 222) x1 / 223 1 / 128 + 1 / 64 + 1 / 32 +.. + 1 / 4

(224 + 1 / 222) x1 / 223
= (223 + 1 + 1 / 222) x1 / 223
= (223 + 223 / 222) x1 / 223
= 1 + 1 / 222
= 223 / 222;
1 / 128 + 1 / 64 + 1 / 32 +... + 1 / 4
= 1 / 128 + 2 / 128 + 4 / 128 + 8 / 128 + 16 / 128 + 32 / 128
= (1 + 2 + 4 + 8 + 16 + 32) / 128
63 / 128