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1+1/2+.....+1/100=?

Răspuns :

1 / 1 + 1 / 2 + ... + 1 / 100 =

1 × 100 / 1 + 2 + ... + 100 =

100 / 100 × 101 : 2 =

100 / 10100 : 2 =

100 / 5050 =

10 / 505 = 2 / 101