Practice problem
Which ratios below are equivalent to the ratio 1:21:21:2?
198:396198:396198:396
2:4.12:4.12:4.1
7:147:147:14
100:200100:200100:200
50:6050:6050:60
95:19095:19095:190
Type a concept, like “slope” or “photosynthesis”.
