Disguise | Class 8 Mathematics Notes
By ConceptScroll Team · Published on 17 July 2026 · 2 min read
Disguise – this guide gives you a concise, exam-ready overview of Disguise from Class 8 Mathematics, written by ConceptScroll editors and reviewed against the latest NCERT textbook.
Converting Between Fractions, Decimals, and Percentages
This section focuses on the methods and step-by-step processes for converting numbers between fractions, decimals, and percentages. It emphasizes the importance of understanding these conversions to solve real-life problems efficiently. The section explains that to convert a fraction to a decimal, divide the numerator by the denominator. To convert a decimal to a fraction, write the decimal digits over the appropriate power of 10 and simplify. To convert a decimal or fraction to a percentage, multiply by 100. Conversely, to convert a percentage to a decimal, divide by 100, and to a fraction, write the percentage over 100 and simplify. The section includes examples demonstrating these conversions and highlights common pitfalls such as not simplifying fractions or misplacing the decimal point. It also explains how these conversions are used in practical contexts such as calculating taxes, interest, and data interpretation.
📊 Diagram: Flowchart showing the steps to convert between fractions, decimals, and percentages with arrows indicating the direction of conversion.
🧪 Activity: Activity: Practice converting given numbers among fractions, decimals, and percentages.
🔗 Connection: This section prepares students for the next section on solving word problems involving these conversions.
Frequently asked questions
What is a fraction and how is it generally represented in mathematics?
A fraction is a number that represents parts of a whole. It is generally represented as a/b, where 'a' is the numerator indicating the number of parts considered, and 'b' is the denominator indicating into how many equal parts the whole is divided.
Two fractions are given as $\frac{2}{3}$ and $\frac{4}{6}$. Are these fractions equivalent? Justify your answer using cross multiplication.
Yes, the fractions $\frac{2}{3}$ and $\frac{4}{6}$ are equivalent. Using cross multiplication, 2 × 6 = 12 and 3 × 4 = 12. Since both products are equal, the fractions are equivalent.
Simplify the fraction $\frac{18}{24}$ to its simplest form.
$\frac{3}{4}$
What is the place value of the digit 7 in the decimal number 45.376?
Thousandths
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