Table of prices of Product P1 and P2 for 2015 and 2017
Product | 2015 | 2017 |
P1 | 12 | 15 |
P2 | 13 | 27 |
Product 1
In order to find the ratio of price increase for the P1; the prices must first be expressed as improper fractions.
2015 2017
12 15
Hence the fraction is written as 
. Next the Greatest Common Divisor (GCD) of the two numbers in the fraction is found. In this case the GCD is 3. The GCD is then used to simplify the fraction. The fraction thus simplifies to 
. The next step is to express the fraction as a ration. In representing it as a ratio, the numerator comes first then the denominator. Therefore, the ratio is 5:4. Now the ratio of price increase for P1 is 5:4
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Product 2
Again the prices are expressed as improper fractions.
2015 2017
13 27
The improper fraction becomes 
. Then the GCD of the two numbers in the fraction. Since there is no other common divisor except 1, the fraction cant is simplified farther. The ratio is 27:13. Thus, the ratio of price increase for P2 in the two years is 27:13.
