Question

помогите пж.Найдите значение выражения

Answer 1

$1) = 4.2 + 3 = 7.2$
$2) = 90 div 15 = 6$
$3) = frac{7}{12} - frac{5}{12} = frac{7 - 5}{12} = frac{2}{12} = frac{1}{6}$
$4) = 35 + 8 = 43$
$5) = frac{5}{9} times frac{3}{5} = frac{1}{3}$
$6) = 100 times 0 = 0$