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Use 2,16,4,8 to form four different proportions
2:4=8:16
4:2=16:8
2:8=4:16
8:2=16:4
The four numbers 3.6.8 and 16 can be used to form several different proportions
3:6=8:16
3:8=6:16
16:6=8:3
16:8=6:3
6:3=16:8
6:16=3:8
8:3=16:6
8:16=3:6
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- 13. Write two ratios of 2 / 3, the ratio of () and () is ()
- 14. Find the ratio of 64:40 3 / 4:0.68 1 / 4:3
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- 16. Add two, three and six to form a proportion
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