Respuesta:
a. 8/12 + 6/12= 14/12
b. 45/135 + 20/135= 65/135
c. 18/50 + 32/50= 50/50
d. 35/53 + 15/53= 50/53
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Respuesta:
a. 8/12 + 6/12= 14/12
b. 45/135 + 20/135= 65/135
c. 18/50 + 32/50= 50/50
d. 35/53 + 15/53= 50/53