qual e o resultado 1+1/2x5/4-2/3x(5/2-2/5)
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1+1/2×5/4-2/3×(5/2-2/5)=
1+5/8-2/3×(25-4)/10=
1+5/8-2/3×21/10=
1/2+1/5-42/30=
60+15-168/120=
75-168/120=
93/120=
31/40
1+5/8-2/3×(25-4)/10=
1+5/8-2/3×21/10=
1/2+1/5-42/30=
60+15-168/120=
75-168/120=
93/120=
31/40
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