Question

Помогите пожалуйста СРОЧНО

Answer 1

$sqrt{0.81 times 625} - sqrt{2 frac{1}{4} } = 0.9 times 25 - sqrt{ frac{9}{4} } = frac{9 times 25}{10} - frac{3}{2} = frac{45}{2} - frac{3}{2} = frac{42}{2} = 21$
$sqrt{0.49 times 225} - sqrt{1 frac{11}{25} } = 0.7 times 15 - sqrt{ frac{36}{25} } = frac{7 times 15}{10} - frac{6}{5} = frac{21}{2} - frac{6}{5} = 10.5 - 1.2 = 9.3$
$sqrt{2 frac{14}{121} times frac{4}{25} } - sqrt{1} = sqrt{ frac{256}{121} } times frac{2}{5} - 1 = frac{16 times 2}{11 times 5} - 1 = frac{32}{55} - 1 = - frac{23}{55}$
$sqrt{ frac{147}{48} } = sqrt{ frac{49}{16} } = frac{7}{4} = 1 frac{3}{4}$