Respuesta:
a) 2/3 + 3/5=19/15
b) 1/5 + 4/20=2/5
c) 6/8 – 1/2 =1/4
d) 20/16 – 3/4=1/2
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Respuesta:
a) 2/3 + 3/5=19/15
b) 1/5 + 4/20=2/5
c) 6/8 – 1/2 =1/4
d) 20/16 – 3/4=1/2