Question

encontre a soma 1/10 + 1/40 + 1/80 + 1/154+1/238

Answer 1

Boa noite Alberto 

E = 1/10 + 1/40 + 1/80 + 1/154 + 1/238 

mmc(10, 40, 80, 154, 238) = 104720 

10472 + 2618 + 1309 + 680 + 440 = 15519

E = 15519/104720 = 2217/14960