Question

tích bằng cách thuận tiện nhất : 

mẫu : \(\frac{48\times12}{6}=8\times12=96\)

\(\frac{63\times18}{9}=\)

\(\frac{56\times24}{12}=\)

\(\frac{56\times24}{28}=\)

\(\frac{56\times24}{3\times8}=\)

\(\frac{8\times15\times9}{5\times3\times2}\)

ai xong đầu mình tick cho nha 

Answer 1

\(\frac{63x18}{9}=63x2=126\)

\(\frac{56x24}{12}=56x2=112\)

\(\frac{56x24}{28}=2x24=48\)

\(\frac{56x24}{3x8}=\frac{56x24}{24}=56\)

\(\frac{8x15x9}{5x3x2}=\frac{2x4x5x3x3x3}{5x3x2}=4x3x3=36\)

Answer 2

=7x18=126

=56x2=112

=7x8=56

=4x9=36

Answer 3

\(\frac{63x18}{9}=7x18=126\)

\(\frac{56x24}{12}=56x2=112\)

\(\frac{56x24}{28}=2x24=48\)

\(\frac{56x24}{3x8}=7x8=56\)

\(\frac{8x15x19}{5x3x2}=4x1x19=76\)