Question

tinh bang cach thuan tien

\(\frac{20}{11}\)X\(\frac{33}{23}\)X\(\frac{69}{180}\)

 

 

 

Answer 1

\(\frac{20}{11}X\)\(\frac{33}{23}X\)\(\frac{69}{180}\)\(=\frac{20X11X3X23X3}{11X23X20X3X3}=\)\(1\)

TỚI CHỖ \(\frac{20X11X3X23X3}{11X23X20X3X3}\)THÌ BẠN GẠCH CHÉO NHỮNG SỐ GIỐNG NHAU NHA

Answer 2

20/11 x 33/23 x 23/60 = 20x33x23/11x23x60 = 1x3x1/1x1x3 = 3/3 = 1