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1 over 3
7/21 = 1/3
21 over 30
equivalent fraction to 7 over 18 = 14/36
6/21 = 2/7
3/7
4/7
1/7
It is: 3/7
7/9
7 over 1 or 14 over 2 or 21 over 3 etc..
21 over 30 and 7 over 10
It is: 6/21 = 2/7 in its simplest form