Question

(0.4-3/20*6 2/3-1.75:(-7 7/8)
ПОМОГИТЕ ПЖ СРОЧНО!!!!!!!!

Answer 1

$1) \frac{3}{20} \times \frac{20}{3} = 1$
$2)0.4 - 1 = - 0.6$
$3) \frac{175}{100} \div ( - \frac{63}{8} ) = \frac{175}{100} \times \frac{8}{63} = \\ \frac{175 \times 2}{25 \times 63} = \frac{350}{1575} = - 4.5$
$4) - 0.6 - ( - 4.5) = - 0.6 + 4.5 = \\ 3.9$