What is the shortcut to find LCM?
1st) Write the two numbers as a fraction, with the smaller number as numerator. Then reduce the fraction to lowest terms. 2nd) Multiply the original fraction by the reciprocal of the reduced fraction. The fraction that you wind up with has the LCM as both the numerator and denominator.
How do you do 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 find HCF short tricks?
Division Method to find HCF (Shortcut):
- Step 1: Divide the larger number by the smaller number.
- Step 2: Divisor of step 1 is divided by its remainder.
- Step 3: Divisor of step 2 is divided by its remainder.
- Step 4: Divisor of the last step is the HCF.
- e.g. Find the HCF of 108 and 288.
How to find least common multiple?
First,write the numbers,separated by commas
How do you find the least common multiple?
To find the least common multiple of two numbers, factor the two numbers, noting the frequency of the prime factors, and then multiply the most repeated factors together. Perform division to check your answer when complete.
How to calculate HCF?
Write down each number as the product of its prime factors.
What is the least common multiple of 10 and 12?
Least Common Multiple of 10 and 12. Least common multiple (LCM) of 10 and 12 is 60. LCM(10,12) = 60.