All ratios have equivalent ratios. These can have terms that are either smaller or larger than the original ratio. You find equivalent ratios the same way you find equivalent fractions. You can simplify a ratio (make the terms smaller) if there is a common divisor for both terms. For example, the ratio 4:2 can be simplified because both terms are can be divided by the divisor 2. Hence, the ratio 4:2 has the equivalent, simplified ratio of 2:1. Also, you can find equivalent ratios by multiplying both terms by the same number. For example, another ratio that is equivalent to 4:2 is 8:4. This is because
4x2=8 and 2x2=4.