A compact but richer percentage, ratio, and proportion sheet that keeps base values, equivalent forms, and proportional reasoning visible.
Percentages describe amounts per hundred, ratios compare linked quantities, and proportional reasoning scales relationships without changing their structure.
15% of 80 = 12.
Increase from 40 to 50 = 25% increase.
18:24 simplifies to 3:4 because the GCD is 6.
Use the Percentage of Value Calculator for a quick percentage of value result with clear inputs and a readable answer.
Use the Percentage Change Calculator for a quick percentage change result with clear inputs and a readable answer.
Use the Ratio Simplifier Calculator for a quick ratio simplifier result with clear inputs and a readable answer.
A fuller guide to fractions, decimals, and ratios, focused on choosing the most readable form, preserving proportional meaning, and moving cleanly between equivalent representations.
A deeper guide to percentages, percentage of a value, and percentage change, with attention to base values, direction, and why percentage increase and decrease are not perfectly reversible.