a) \(\frac{36x45}{6x5}\) = \(\frac{6x6x5x9}{6x5}\) = 6 x 9 = 54
a) 36x45/6x5
=6x9/1x1
=54
b) 56x63/9x8
=7x7/1x1
=49
k mk nha mk k lai
\(\frac{36x45}{6x5}\)= \(\frac{6x6x9x5}{6x5}\)= 54
b) \(\frac{56x63}{9x8}\)= \(\frac{8x7x9x7}{9x8}\)= 49
tk nhé
b) \(\frac{56x63}{9x8}\)= \(\frac{7x8x7x9}{9x8}\)= \(\frac{7x7}{1}\)= \(49\)