August 2018 2 145 Report
Calcula mentalmente que fraccion es necesario sumar o restar para obtener el resultado que se indica en cada caso.

A) 2/3 + .... =3
b) 7/5 + ....=2
c) 17/5 + ....=2
d) 3 + ....=11/2
e) 5/2 - ....=4
f) 9/2 - ....=4
g) 3/8 - ....=1
h) 4 - ....=3/4

/ SIGNIFICA RAYITA DE FRACCION
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