This document contains notes from a math student's copy book covering ratios and fractions. It includes examples and exercises on simplifying fractions, writing numbers divisible by certain numbers, finding ratios between quantities, and properties of ratios. Key concepts covered are ratios comparing two quantities, reducing ratios to simplest form, ratio properties such as keeping the same units and order, and using ratios to solve word problems involving quantities in a given ratio. Worked examples demonstrate finding ratios and using them to determine unknown values. Exercises provide practice applying these ratio and fraction skills.