Răspuns:
Explicație pas cu pas:
5.
Crista a rezolvat 2/6; i-au ramas 6/6 - 2/6 = 4/6
Iarina a rezolvat 2/6 + 1/6 = 3/6; i-au ramas 6/6 - 3/6 = 3/6
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6.
Banii folositi 2/6 + 1/6 = 3/6
Ii ramane 6/6 - 3/6 = 3/6
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7.
Stejari 2/9
Fagi 2/9 + 1/9 = 3/9
Fagi si Stejari = 3/9 + 2/9 = 5/9
Castani 9/9 - 5/9 = 4/9
