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Formula Sheet

Rational Numbers

ICSE · Class 7 · Mathematics

All formulas from Rational Numbers in ICSE Class 7 Mathematics. Key equations, constants, and identities for board exam preparation.

39 questions28 flashcards5 concepts

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A nested Venn diagram illustrating the relationships between natural numbers (N), integers (Z), rational numbers (Q), and real numbers (R) as subsets of each other.
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6 Formulas · 2 Sections

Formulas

Comparison of Rational Numbers

a × d vs b × c

if a > b => -a < -b; if a < b => -a > -b

Operations on Rational Numbers

a/c + b/c = (a+b)/c

To add/subtract rational numbers with unequal denominators, first make denominators equal.

Product of rational numbers = product of numerators / product of denominators

a/b ÷ c/d = a/b × d/c

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Frequently Asked Questions

What are the important topics in Rational Numbers for ICSE Class 7 Mathematics?
Key topics in Rational Numbers include Rational Numbers – Complete Chapter Overview, Rational Numbers Concept Map, Decision Tree for Rational Number Operations. These are the concepts ICSE Class 7 examiners draw on most — study them first, then practise related questions.
How to score full marks in Rational Numbers — ICSE Class 7 Mathematics?
Understand the core concepts first, then work through the 39 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 25 chapters — ICSE Class 7 Mathematics Formula Sheet

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