\(\frac{2}{4}=\frac{8}{16},\frac{4}{16}=\frac{8}{32}\)
Tu nam so 2;4;6;18;32 ta co dang thuc:
2.16=4.8 (1)
2.32=4.16 (2)
4.32=8.16 (3)
Tu (1) ta lap duoc:2/4=8/16; 2/8=4/16;16/8=4/2;16/4=8/2
tu (2)...................:2/4=16/32;2/16=4/32;32/16=4/2;32/4=16/2
tu (3)....................:4/8=16/32'4/16=8/32;32/8=16/4;32/16=8/4