Question

помогите пожалуйста!!!!

Answer 1

$1) frac{25}{49} times frac{7}{15} = frac{5}{7} times frac{1}{3} = frac{5}{21}$
$2) frac{9}{16} times frac{32}{45} = frac{1 times 2}{1 times 5 } = 0.4$
$3) frac{1}{4} times frac{4}{5} = frac{4}{20} = 0.2$
$frac{19^{2} }{49} times frac{14}{19} = frac{19 times 2}{7 times 1} = frac{38}{7}$