The ratio 12 to 5 can be expressed as 12:5 or 12/5. This ratio indicates that for every 12 units of one quantity, there are 5 units of another quantity. Ratios are used to compare quantities and can be simplified by dividing both numbers by their greatest common factor, which in this case is 1.
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It is 12/20 = 3/5.
3:5:1
The ratio of 15 boys to 12 girls can be simplified by finding the greatest common divisor of 15 and 12, which is 3. Dividing both numbers by 3 gives us a ratio of 5 boys to 4 girls. This means for every 5 boys, there are 4 girls in the group.
It is: 5/12 of 12 = 5
6 : 10 = 12 : 20 OR 3 : 5