How do you know if a question is HCF or LCM?

Secondly, whenever the question is related to classification or distribution into groups, then in all the cases it is HCF only. Whenever the question talks about the smallest or minimum, then in most of the cases it will be a question of LCM.

Why do we need LCM and HCF?

L.C.M and H.C.F of two or more numbers help in finding out quick solutions and thus reduce time during examinations. The concept of L.C.M. is important to solve problems related to racetracks, traffic lights, etc.

What problems can be solved using LCM?

Problems in which two different amounts must be split into (select) number of groups can be solved using the GCF. Problems with events that occur on (select) schedules can be solved using the LCM.

What is an example of a LCM word problem?

Find the lowest number which is more by 6 to be divided by 25, 40 and 60 exactly. We find the L.C.M. of 25, 40 and 60. Therefore, the required number is 600 + 6 = 606.

Where is LCM used in real life?

So the LCM of all the timings is that time when all the strings will glow at the same time! So for all strings with timings between 1 to 3 seconds, LCM = 6. So at the 6th second all the strings will glow together! Isn’t is wonderful to know that LCM is used in real life!

What is the use of HCF and LCM in daily life?

The fundamental knowledge of HCF and LCM is highly important for students to learn advanced topics quickly. They are mainly applied in number theory and various other topics like factorization, permutation, combinations, etc. All these topics are a little bit tricky to understand and also require precise understanding.

Where is HCF used?

Applications of HCF It is used to split things into smaller sections, to arrange something into rows or groups, to distribute more numbers of items to large groups, and to figure out how many people we have to invite and so on when we want to split things into smaller sections.

What types of problems can be solved using the greatest common multiple?

Complete the explanation. Problems in which two different amounts must be split into (select) number of groups can be solved using the GCF. Problems with events that occur on (select) schedules can be solved using the LCM.

What is the purpose of LCM?

Least Common Multiple i.e. LCM is a method to find the minimum common multiple between any two or more numbers. LCM denotes the least value of common factor or multiple of any two integers.

How is LCM used in our daily life?

Why We Use HCF in real life?

What types of problems can be solved using the least common multiple?

The LCM can be used in problems where you have to find an overlap of two activities or anything similar, or in problems where you need to add two or more fractions with different denominators.

What is the logic behind LCM and HCF?

The H.C.F. defines the greatest factor present in between given two or more numbers, whereas L.C.M. defines the least number which is exactly divisible by two or more numbers. H.C.F. is also called the greatest common factor (GCF) and LCM is also called the Least Common Divisor.

Why is LCM used in real life?