Resolva as seguintes expressões
A) 2.7/5
B)1-1/5
C)[9/3+7/7].1/4
D)1+2/5+3/2
E)7/8-1/8-2/8
F)[9/3+7/7]:1/4
G)[(100/3)°+(1/4)]
H)1/3+12
4/8-12/8
por favor me ajuda

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