Resolva As Seguintes Frações :

a) 3 + 2
7 5


b ) 4 + 7
9 11

c ) 4 - 1
3 2

d ) 5 - 3
8 5

e ) 15 . 9
7 2

f ) 8 . 4
3 7

g ) 9 : 15
2 7

h ) 8 : 9
5 6

i ) 0,5 + 3
8

j ) 0,3 - 7
9


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