Question

Me ajude a fazer essa questão pfv

Answer 1

$A=\frac{1}{2}+(-5+\frac{1}{2})-(\frac{1}{3}-\frac{1}{4})\\\\A=\frac{1}{2}-5+\frac{1}{2}-\frac{1}{3}+\frac{1}{4}\\\\A=\frac{6-60+6-4+3}{12}\\\\A=-\frac{49}{12}$

$B=-\frac{1}{3}-[0,1+(\frac{1}{10}-\frac{1}{5})-\frac{1}{3}]\\ \\B=-\frac{1}{3}-[\frac{1}{10} +\frac{1}{10}-\frac{1}{5}-\frac{1}{3}]\\\\B=-\frac{1}{3}-\frac{1}{10}-\frac{1}{10}+\frac{1}{5}+\frac{1}{3}\\\\B=-\frac{2}{10}+\frac{1}{5}\\\\B=-\frac{1}{5}+\frac{1}{5}\\\\B=0$

$A-B=-\frac{49}{12}-0\\\\A-B=-\frac{49}{12}$