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Formula Sheet

Rational Numbers — Formula Sheet

ICSE · Class 7 · Mathematics

6 formulas from Rational Numbers (ICSE Class 7 Mathematics) on one page, grouped by topic. Part of the ICSE Class 7 Mathematics syllabus.

39 questions28 flashcards6 formulas & key relations5 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 Entries · 2 Sections

Formulas and Key Relations

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 What Rational Numbers Are, Number Line Representation and Comparison, Finding Rational Numbers Between Two Given Numbers, Addition and Subtraction of Rational Numbers. Study these first, then practise questions on each for Class 7 exams.
How many formulas are in Rational Numbers?
This sheet lists 6 formulas from Rational Numbers, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Rational Numbers for Class 7 exams?
Learn the core ideas first, then work through the 39 practice questions on Rational Numbers. Revise 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.

More resources for Rational Numbers

All ICSE Class 7 Mathematics Formula Sheet

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