Question

resposta da expressão 1/3 +2 1/5?

Answer 1

1/3 + 21/5 = ?

Determinar mmc(3,5) = 15

3,5|3
1,5|5
1,1| = 3x5 = 15 ← mmc(3,5)

Resolvendo:

1/3 + 21/5 = 5*1/15 + 3*21/15 = (5 + 63)/15  = 68/15

■ A resposta é 68/15

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11/10/2016
Sepauto 
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