Mimiriask
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Răspuns :

7  1/5 = (7*5 + 1)/5 = 36/5 kg (Tom )

36/5 : 12 = 36/5*1/12 = 3/5 kg (Jerry)

36/5 + 3/5 = (36 + 3)/5 = 39/5 = 7  4/5 kg (impreuna)

Mlarisa862ask

Răspuns:

Tom=(7*5+1)/5=36/5

Jerry=36/5÷12=36/5*1/12=36/60=3/5

Tom+Jerry=36/5+3/5=39/5=7,8 kg.

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