1/2:1/3= 1/2 × 3 = 3/2
1/2:1/4= 1/2 × 4 = 2
8/9:4/21= 8/9 × 21/4 = 2/3 × 7 = 14/3
16/25:24/35= 16/25 × 35/24 = 2/5 × 7/3 = 14/15
100/123:75/82= 100/123× 82/75= 4/3 × 2/3 = 8/9
1/2:1/3= 1/2 × 3 = 3/2
1/2:1/4= 1/2 × 4 = 2
8/9:4/21= 8/9 × 21/4 = 2/3 × 7 = 14/3
16/25:24/35= 16/25 × 35/24 = 2/5 × 7/3 = 14/15
100/123:75/82= 100/123× 82/75= 4/3 × 2/3 = 8/9