Question

tính nhanh38x27x50/10x19x54

Answer 1

\(\frac{38\times50\times27}{10\times19\times54}=\frac{19\times2\times5\times10\times9\times3}{10\times19\times9\times2\times3}=5\)
 

Answer 2

38x27x50/10x19x54

= 19x2x27x10x5/10x19x27x2

=5

k mk nha

Answer 3

38 x 27 x 50/10 x 19 x 54

= 38 x 27 x 5 x 19 x 54

= 1026 x 270 x 19

= 5263380

Answer 4

\(\frac{38\times27\times50}{10\times19\times54}\)

\(=\frac{19\times2\times27\times5\times10}{10\times19\times27\times2}\)

Bỏ: số giống nhau ở hai hàng : 19 ; 2 ; 27; 10

\(\frac{5}{1}\) Vậy x = 5