How do you solve HCF and LCM questions?
How do you solve HCF and LCM questions?
Sometimes in such questions, the common remainder can also be asked. You can divide any of the numbers given by HCF (41 ¸ 10) and find the remainder to be equal to 1. L.C.M. of 2, 3 and 6 = 6 ; H.C.F. of 5, 10 and 25 = 5. Thus, the LCM of these three fractions will be 6/5.
How do you find the LCM and HCF in maths?
The formula that shows the relationship between their LCM and HCF is: LCM (a,b) × HCF (a,b) = a × b. For example, let us take two numbers 12 and 8. Let us use the formula: LCM (12,8) × HCF (12,8) = 12 × 8. The LCM of 12 and 8 is 24; and the HCF of 12 and 8 is 4.
How do you know if a question is LCM or HCF?
When we have to find a number larger than given numbers, then we find LCM. If we have to find smaller number, then we find HCF .
How to find the HCF and lcm of two numbers?
Question 11: The LCM of two numbers is 495 and their HCF is 5. If sum of the numbers is 100, then find their difference. Solution: Let the two numbers be x and ( 100 – x). ⇒ x= 45 and 55. So the numbers are 45 and 55. The difference between them is 10. Question 12: The HCF and LCM of two numbers are 21 and 84 respectively.
What to know about the LCM and HCF exercise?
To know about the lcm exercise, lcm worksheets pdf, hcf and lcm worksheets grade 4, lcm worksheets 7th grade, lcm sums for class 5, least common multiple word problems worksheet, . = 35 So option number (A) is right.
How to find the highest common factor in HCF?
Then multiply each factor the most number of times it occurs in any number. If the same multiple occurs more than once in both the given numbers, then multiply the factor the most number of times it occurs. In BYJU’S you can also learn, Prime Factorization Of Hcf And Lcm. Example: Find the Highest Common Factor of 25, 35 and 45.
Which is the least perfect number in HCF?
So, the required number =2 2 × 3 x 2 x 3 2 = 216. Q9. The least perfect square number which is divisible by 3, 4, 5, 6 and 8 is L.C.M. of 3, 4, 5, 6, 8 = 120 ; Required number =2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 = 3600.