Question

resultado da expressão  -1+ 3/10 -1,2 é​

Answer 1

$1.2 = \frac{12}{10} \\\\-1 + \frac{3}{10} - 1.2 \\\\-1 + \frac{3}{10} - \frac{12}{10}\\ \\-1 + \frac{3 - 12}{10} = -1 - \frac{9}{10} \\\\\frac{(-1)*10}{10} - \frac{9}{10}\\\\\frac{-10 - 9}{10} = \frac{-19}{10} = -1.9$