Understanding Ratios: Ratios compare two or more quantities, showing their relative sizes. The order of numbers in a ratio matters, e.g., 2:3 is different from 3:2.

Dividing Amounts by Ratio: To split an amount like Â£200 in a 7:3 ratio, divide the total by the sum of parts, then multiply by each ratio part to find individual shares.

Simplifying Ratios: Simplify ratios by dividing all parts by their common factors, e.g., 24:40 simplifies to 3:5, making it easier to interpret.

Expanding Ratios: Expand ratios by multiplying each part by the same number, e.g., expanding 3:7 by 5 results in 15:35.