Question

Решите , ! это дробный пример! -3.2 * 1 2/5 * (-0.15) = -0.3 * (-2.8) * 5 1/3 ,кто ! *)

Answer 1

...= -96 * 300 / 1000 * 3 * 28 * 16 = - 3 / 140

Answer 2

-3.2 * 1 2/5 * (-0.15)
__________________    = $1 \frac{9}{16}$
-0.3 * (-2.8) * 5 1/3

1)  $-3 \frac{2}{10} *1 \frac{2}{5} *(- \frac{15}{100} )= \frac{32*7*15}{10*5*100} = \frac{4*7*3}{5*1*25} = \frac{84}{125}$

2) $- \frac{3}{10} *(-2 \frac{8}{10}) *5 \frac{1}{3} = \frac{3*28*16}{10*10*3} = \frac{1*14*8}{5*5*1}= \frac{112}{25}$

3) $\frac{84}{12} / \frac{112}{25}= \frac{84*25}{12*112}= \frac{25}{16}=1 \frac{9}{16}$