Class VI Mathematics

Chapter 7: Fractions & Decimals

Standard NCERT & CBSE aligned study curriculum. Master concepts, track accuracy, revise weak areas, and challenge yourself with 9 customized practice modes.

Chapter Overview

Welcome to Class VI Mathematics: Fractions & Decimals. This chapter forms a core structural component of the math syllabus, designed to build analytical rigor and key formula models.

Use the detailed subtopic guide below to review standard definitions, key mathematical rules, and study guidelines.

Prerequisite Concepts

Halves and QuartersTenths and Hundredths

Detailed Subtopics Study Guide

Review detailed conceptual explanations, mathematical equations, and guidelines for each subtopic in this chapter:

1Fraction on number line

Concept Explanation

Plotting fractions by dividing the intervals between whole numbers into equal segments based on the denominator.

Mathematical Representation
\text{Segment length} = \frac{1}{\text{Denominator}}
Study Guideline: To plot 2/3, divide the space between 0 and 1 into 3 parts and select the 2nd mark.

2Proper, Improper, and Mixed fractions

Concept Explanation

Proper: numerator < denominator. Improper: numerator ≥ denominator. Mixed: whole number with a proper fraction.

Mathematical Representation
\frac{a}{b} \, (a < b), \quad \frac{a}{b} \, (a \ge b), \quad w\frac{a}{b}
Study Guideline: Improper fractions have values greater than or equal to 1.

3Equivalent fractions and simplifying

Concept Explanation

Equivalent fractions represent the same value. Simplifying is dividing numerator and denominator by their HCF.

Mathematical Representation
\frac{a}{b} = \frac{a \div \text{HCF}}{b \div \text{HCF}}
Study Guideline: A fraction is fully simplified when its numerator and denominator are co-prime.

4Comparing fractions

Concept Explanation

Comparing values of fractions by finding equivalent fractions with a common denominator (LCM).

Mathematical Representation
\frac{a}{b} > \frac{c}{d} \iff ad > bc \quad (b, d > 0)
Study Guideline: Cross-multiplication is the fastest way to compare two unlike fractions.

5Decimal fractions and place value

Concept Explanation

Decimals represent fractions with denominators of 10, 100, 1000. Place values are tenths, hundredths, thousandths.

Mathematical Representation
x.yzw = x + \frac{y}{10} + \frac{z}{100} + \frac{w}{1000}
Study Guideline: The place value decreases by a factor of 10 for each step to the right of the decimal point.

6Decimals addition and subtraction

Concept Explanation

Adding and subtracting decimals by vertically aligning the decimal points.

Mathematical Representation
\text{Align points vertically} \rightarrow \text{Add/Subtract columns}
Study Guideline: Write placeholder zeroes to make all decimal lengths equal before calculating.