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21/7 = 3 Or, a 3 to 1 ratio.
The ratio 3 to 7 is equivalent as 6 to 14
624Km
7:3
It is: 7 to 3
As 21 is 3 x 7 the ratio 7:21 = 1:3
It is in the ratio of: 90 210
7 to 3
7/3
3 to 5 is bigger.
3/7 to 1
the ratio is 3:7