Weight of apples+weight of oranges********************** 13/9+19/6=4.611111************************** Weight of apples+oranges+pears=58/3*************** Weight of pears=58/3-4.611111=14.722222 kg

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Weight of total fruits = 58/3 kg
weight of apples = 13/9 kg
weight of oranges = 19/6 kg

weight of apples and oranges =  \frac{13}{9} + \frac{19}{6} = \frac{16+57}{18} = \frac{73}{18}kg

weight of pears = total weight - weight of apples and oranges
                       =  \frac{58}{3} - \frac{73}{18} = \frac{58*6-73}{18} = \frac{348-73}{18} = \frac{275}{18} kg

Weight of pears = 275/18 kg