7-FRAÇÃO a)(2/5+1/2):6/5
b)(3/4+1/2)x2/7
c)3x(1-1/5)
d)2/9:(1+1/2)elevado a 2
e)(3/4+1/2)elevado a 2 x 1/2
f)3 1/2:5 2/5+7
b)(3/4+1/2)x2/7
c)3x(1-1/5)
d)2/9:(1+1/2)elevado a 2
e)(3/4+1/2)elevado a 2 x 1/2
f)3 1/2:5 2/5+7
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