Are 2 to 3 and 5 to 6 equivalent ratios?

No, the ratiOS 2 to 3 and 5 to 6 are not equivalent. To determine if two ratiOS are equivalent, you can cross-multiply: 2 × 6 equals 12, while 3 × 5 equals 15. Since 12 does not equal 15, the ratiOS are not equivalent.