Question

а) 5/6 * (-0,3)-4/5 : 1 1/15

b)(-4/5)²× 1 9/16×(-2) Выполните действие

Answer 1

a)
$1) \frac{5}{6} *(-0,3)= \frac{5}{6} *(- \frac{3}{10} )=- \frac{1}{4} \\ 2) \frac{4}{5}:1 \frac{1}{15}= \frac{4}{5} : \frac{16}{15} = \frac{4}{5} * \frac{15}{16} = \frac{3}{4} \\ 3)- \frac{1}{4} - \frac{3}{4} =-1 \\ \\ b) \\ 1) -\frac{4}{5} *(- \frac{4}{5} )= \frac{16}{25} \\ 2) \frac{16}{25} *1 \frac{9}{16} = \frac{16}{25} * \frac{25}{16} =1 \\ 3)1*(-2)=-2$