Question

Помогите!) <Решу ОГЭ>

Answer 1

9)
$10 times { frac{1}{5} }^{2} - 12 times frac{1}{5} = frac{2}{5} - frac{12}{5} = - frac{10}{5} = - 2$
8)
$frac{6.9 - 1.5}{2.4} = frac{5.4}{2.4} = 54 div 24 = 2.25$
10)
$frac{2.4 }{2.9 - 1.4} = frac{2.4}{1.5} = 24 div 15 = 1.6$