Featured post

EDWIN OGIE • AUTHOR • PERSONAL GROWTH • RELATIONSHIPS

By
Image
EDWIN OGIE • AUTHOR • PERSONAL GROWTH • RELATIONSHIPS Books That Help You Grow, Heal & Build Better Practical books for people who want to understand themselves, strengthen their emotional lives and build healthier relationships. Read. Reflect. Grow. Emotional Mastery A practical guide to self-control, confidence, emotional strength and becoming more intentional in the way you respond to life. View on Amazon → PERSONAL GROWTH The Value of You A powerful journey toward self-worth, confidence, personal growth and understanding the importance of valuing yourself. View on Amazon → ...
Post a Comment

JSS 1 Mathematics First Term - HCF and LCM | Edwin Ogie Library

By
JSS 1 Mathematics First Term - HCF and LCM | Edwin Ogie Library

JSS 1 Mathematics First Term: HCF and LCM

This is the second topic in JSS 1 first-term Mathematics. Learn the meaning of highest common factor and lowest common multiple, study worked examples, then take the 20-question CBT quiz on the page.

Home / Library Collections / JSS 1 Mathematics / HCF and LCM
Topic 2

HCF and LCM

HCF means Highest Common Factor. LCM means Lowest Common Multiple. These help in grouping, sharing, and finding common sizes in Mathematics.

Class

JSS 1

First Term Mathematics lesson content prepared in a clear and student-friendly web book format.

Assessment

CBT Practice

20 multiple-choice questions, 10-minute countdown, auto scoring, answer corrections, and email score prompt.

Lesson Note: HCF and LCM

Highest Common Factor (HCF) is the greatest number that can divide two or more numbers exactly.

Lowest Common Multiple (LCM) is the smallest number that is a multiple of two or more numbers.

HCF is used when we want to share items into equal groups without remainder. LCM is used when we want to find when events repeat together or when items meet at the same time.

Example 1: Find the HCF of 12 and 18.
Show solution

Factors of 12: 1, 2, 3, 4, 6, 12. Factors of 18: 1, 2, 3, 6, 9, 18. The highest common factor is 6.

Example 2: Find the LCM of 4 and 6.
Show solution

Multiples of 4: 4, 8, 12, 16, 20, ... Multiples of 6: 6, 12, 18, 24, ... The lowest common multiple is 12.

Example 3: Find the HCF of 15 and 25.
Show solution

Factors of 15: 1, 3, 5, 15. Factors of 25: 1, 5, 25. The HCF is 5.

Example 4: Find the LCM of 3 and 5.
Show solution

Multiples of 3: 3, 6, 9, 12, 15, ... Multiples of 5: 5, 10, 15, 20, ... The LCM is 15.

Example 5: Find the HCF and LCM of 8 and 12.
Show solution

Factors of 8: 1, 2, 4, 8. Factors of 12: 1, 2, 3, 4, 6, 12. HCF is 4. Multiples show the LCM is 24.

CBT Practice Test

20 questions | 10 minutes | Quiz runs on this page.

10:00
Send Score by Email

Quiz Result

The email button opens a draft to edwinogielibrary@gmail.com so the score can be sent easily after submission.

Revision Tip

To find the HCF, list factors or use prime factorization. To find the LCM, list multiples or use prime factors. Practice both methods until you can answer quickly and correctly.

Comments

Post a Comment

We’d love to hear from you! Share your thoughts or questions below. Please keep comments positive and meaningful, Comments are welcome — we moderate for spam and civility; please be respectful.

Popular Posts

FORGIVENESS THE SECRET TO A SUCCESSFUL RELATIONSHIP

By
Image
FORGIVENESS THE SECRET TO A SUCCESSFUL RELATIONSHIP Forgiveness is a critical aspect of human relationships, particularly in marriage. Treating others with mercy and leniency requires you to overlook misunderstandings and the wrongs they have done to you. The capacity to forgive is a fundamental virtue that is the linchpin of safeguarding relationships and leading a flourishing life. Lack of forgiveness causes lots of damage to marriages, and it is often the root cause of divorce in our society. It is, therefore, vital to understand that forgiveness is the key to a lasting, successful, and fulfilling marriage. Before embarking on the journey of marriage, individuals should take responsibility and learn to know themselves deeply. It is essential to realize that marriage is not a walk in the park. It requires perseverance, tenacity, and a loving spirit from the partners involved. When hurt arises, forgiveness is an indispensable tool that partners must employ to calm their difference...
Read more

Mastering the Art of Present Steps for Future Triumphs

By
Mastering the Art of Present Steps for Future Triumphs" In the pursuit of victory, every step forward is pivotal. It's essential to navigate your present position with care, for it is the springboard to your future achievements. How you handle your current endeavors directly impacts the path to your next conquests. Attempting to bypass or disregard your present circumstances can undermine your success in the steps that follow. In the realm of business, strategic maneuvering is essential to attaining your desired goals. Step into Consciousness: Harnessing Experience for Future Benefits Experience serves as our greatest teacher, guiding us towards tomorrow's rewards. Often, we fall into the trap of assuming the world revolves around us, treating our current situations with indifference and overlooking their implications for future outcomes. It's crucial to be mindful of how we approach our present steps, recognizing their significance in shaping tomorrow's victories....
Read more

Navigating Life's Complexities Through Self-Consciousness

By
EO Navigating Life’s Complexities Through Self-Consciousness A practical, story-driven guide to building mental resilience, clarity and better relationships in daily life. Expand all Collapse all Print Download .doc Introduction What is Self-Consciousness? Why it Matters The Nigerian Context Stories in Action Root Causes Upbringing & Environment Strategies to Grow Applications Exercises & Plans Scripts & Conversation Frames Resources Conclusion Introduction In a world of constant noise, stress, and social pressure, developing self-consciousness — the steady ability to notice yourself and choose — is essential. This post explains what it is, why it matters (especially in Nigeria), and how to build it with concrete stories...
Read more