21 : 6factor out a 33(7 : 2)7 : 2==========simplified ratio
21/7 = 3 Or, a 3 to 1 ratio.
16:21
2 to 1
1 : 6
6/14 = 3/7
6/21 = 2/7 simplified
18/21 = 6/7
Expressed as a ratio in its simplest form, by dividing the antecedent and consequent by 3, 21:27 is equal to 7:9.
Factor out the 6, 6*1 : 6*7 as 6 appears in both sides of this ratio as a factor it can be eliminated 1 : 7 ===
The ratio 300 : 250 can simplify to 6 : 5
6 to 5.6 = 60 to 56 = 30 to 28 = 15 to 14