Question

Cum se mai faceau fractiile de genul $\frac{ \frac{40}{21} }{2}$

Answer 1

$\frac{ \frac{40}{21} }{2} = \frac{40}{21} \times \frac{1}{2} = \frac{40 \times 1}{21 \times 2} = \frac{40}{42} = \frac{20}{21}$

Answer 2

( 40 / 21 ) / 2 = 

= ( 40 / 21 ) / 2 / 1 

= (  40 x 1 )  / ( 21 x 2  )

= 40  /  ( 21 x 2 ) 

= 20 / 21