Question

6. Calcule e simplifique o resultado, quando possível:

1/3 + 2/3 - 1/2

2/3 + 3/4 - 1/4

2/8 + 3/5 + 2/8 =

Answer 1

Resolução!

$= \frac{1}{3} + \frac{2}{3} - \frac{1}{2} - - - - mmc = 6 \\ \\ = \frac{2 + 4 - 3}{6} = > \frac{6 - 3}{6} = > \frac{3 \div 3}{6 \div 3} = \frac{1}{2} \\ \\ \\ = = = = = = = = = = = = = = = = = = = = = = \\ \\ \\ = \frac{2}{3} + \frac{3}{4} - \frac{1}{4} - - - mmc = 12 \\ \\ = \frac{8 + 9 - 3}{12} = > \frac{17 - 3}{12} = > \frac{14 \div 2}{12 \div 2} = \frac{7}{6} \\ \\ \\ = = = = = = = = = = = = = = = = = = = = > \\ \\ \\ \\ = \frac{2}{8} + \frac{3}{5} + \frac{2}{8} - - - mmc = 40 \\ \\ = \frac{10 + 24 + 10}{40} = > \frac{44 \div 4}{40 \div 4} = \frac{11}{10} \\ \\ \\ \\ \\ espero \: ter \: ajudado$