Equivalent ratios

Equivalent ratios are different ratios that express the same relationship. Multiplying or dividing both parts of a ratio by the same non-zero number produces an equivalent ratio: 2 : 3, 4 : 6, and 10 : 15 are all equivalent.

A ratio table lists equivalent ratios as rows of multiples, and a double-number-line shows them as aligned pairs. The unit-rate is the equivalent ratio whose second term is 1.