787
7 to 2 and 21 to 3
1/2 is equivalent to 7/14. Ratios are just like fractions, so this is how you know: If you take 1/2 and multiply both the top and bottom by 7, you will get 7/14. As long as you multiply both the top and bottom by the same number, you will get equivalent fractions.
7 to 2, 28 to 8 and 56 to 16
yes
7/11
7
what are two equivlent ratios for 2:11
No, they are not.
2:7
1:2, 2:4, 4:8, 6:12 a equivalent ratios compares units that are the same.
No. 4/7 and 16/28 and 28/49 are equivalent ratios. The 4 and the 7 must be multiplied by the same number in order to maintain the ratio.
Equivalent ratios are often referred to as "proportional ratios." These are ratios that express the same relationship between two quantities, even though the numbers may differ. For example, the ratios 1:2 and 2:4 are equivalent because they represent the same proportional relationship.