# Chapter 4 Fractions-Ratio & Percentage

## 4.1 Fractions

A fraction represents a numerical value, which defines the parts of a whole. In this section, we learn about fractions, working with fractions, equivalent fractions, add simple fractions, subtract simple fractions, multiply simple fractions, divide simple fractions.

Chapter 4 Fractions-Ratio & Percentage

## 4.3 Ratio and Proportion

Proportion is a mathematical comparison between two numbers. Basic proportions are of two types: direct proportions and inverse proportions. A ratio is a comparison of two or more numbers that indicates their sizes in relation to each other. In this section, we learn about Ratio, Proportion, simplified ratio.

Chapter 4 Fractions-Ratio & Percentage

## 4.4 Percentages

The percent increase between two numbers is the amount that a number increases from an initial value to a final value in terms of a percent. Percent decrease refers to the percentage change in the value when it is decreased over a period of time. In this section, we learn about Percentages, profit, loss, inverse percentages, percentage increase, percentage decrease, one amount as a percentage of another, multipliers, unitary method.

Chapter 4 Fractions-Ratio & Percentage

## 4.5 Fractions, Decimals and Percentages

A fraction is a number that represents a part of a whole. While a decimal is a number that consists of a whole and a fractional part separated by a decimal point. In this section, we learn about Percentages, fractions, convert decimal to fraction, convert, finding a change as a percentage, comparing percentages, fractions and decimals.

Chapter 4 Fractions-Ratio & Percentage