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Formula Sheet

Finding Common Ground

CBSE · Class 7 · Mathematics

All formulas from Finding Common Ground in CBSE Class 7 Mathematics. Key equations, constants, and identities for board exam preparation.

54 questions70 flashcards5 concepts

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9 Formulas · 3 Sections

Formulas

HCF and Common Factors

HCF × LCM = Product of the two numbers

HCF of 30 and 72: 30 = 2 × 3 × 5; 72 = 2 × 2 × 2 × 3 × 3; HCF = 2 × 3 = 6

HCF of 225 and 750: 225 = 3 × 3 × 5 × 5; 750 = 2 × 3 × 5 × 5 × 5; HCF = 3 × 5 × 5 = 75

LCM and Common Multiples

LCM of 14 and 35: 14 = 2 × 7; 35 = 5 × 7; LCM = 2 × 5 × 7 = 70

LCM of 96 and 360: 96 = 2 × 2 × 2 × 2 × 2 × 3; 360 = 2 × 2 × 2 × 3 × 3 × 5; LCM = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 = 1440

HCF × LCM = Product of the two numbers

Patterns, Properties, and Shortcuts

If one number is a factor of another, HCF of the pair = smaller number

If both numbers are doubled, their HCF also doubles

HCF of 14 × 6 and 14 × 9 = 42

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Frequently Asked Questions

What are the important topics in Finding Common Ground for CBSE Class 7 Mathematics?
Finding Common Ground covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Finding Common Ground — CBSE Class 7 Mathematics?
Understand the core concepts first, then work through the 54 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.

More resources for Finding Common Ground

All 15 chapters — CBSE Class 7 Mathematics Formula Sheet

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