Question

Выполните действия. 2,7 : 9/14 =

Answer 1

$2,7 : \frac{9}{14}\ = \ 2 \frac{7}{10} : \frac{9}{14} \ = \ \frac{27}{10} : \frac{9}{14} \ = \ \frac{27}{10} \cdot \frac{14}{9} \ = \ \frac{27\cdot14}{10\cdot9} = \frac{378}{90} = 4,2; \\ \\ \\ OTBET: 4,2$

Answer 2

2.7 : 9/14=2 7/10 : 9/14=27/10:9/14=(27*14)/(10*9)=(3*7)/(5*1)=21/5= 4 1/5=4.2