Question

2- 1/5 + 1/4 : 1+ 1/6

Answer 1

2- 1/5 + 1/4 : 1+ 1/6

10-1/5+1/4 : 6+1/6

9/5+1/4 : 7/6

36+5/20 : 7/6

41/20  : 7/6

41/20·6/7

246/140 = 123/70 → resposta

Answer 2

Resposta:

$2 - \frac{1}{5} + \frac{1}{4} \div 1 + \frac{1}{6} = \\ \\ \frac{5 \times 2}{5} - \frac{1}{5} + \frac{1}{4} \div 1 + \frac{1}{6} = \\ \\ \frac{10}{5} - \frac{1}{5} + \frac{1}{4} \div 1 + \frac{1}{6} = \\ \\ \frac{10 - 1}{5} + \frac{1}{4} \div 1 + \frac{1}{6} = \\ \\ \frac{9}{5} + \frac{1}{4} \div 1 + \frac{1}{6} = \\ \\ \frac{9}{5} + \frac{1}{4} \times \frac{1}{1} + \frac{1}{6} = \: \\ \\ \frac{9}{5} + \frac{1}{4} + \frac{1}{6} = \\ \\ \frac{12 \times 9 + 15 \times 1 + 15 \times 1}{60} = \\ \\ \frac{108 + 15 + 15}{60} = \\ \\ \frac{138}{60} = \frac{23}{10}$

Explicação passo-a-passo:

A conta está toda montada. Qualquer dúvida é só perguntar.