Finding The Lcm & Hcf

Finding the Lowest Common Multiple for a range of denominators is not easy. However, in this step by step guide , we provide the way in which this can be donoe. Please do go through this in detail on the way to carry out this process:

FIND LOWEST COMMON DENOMINATOR WITH TRICKY FRACTIONS

HOW DO YOU FIND THE LOWEST COMMON DENOMINATOR OF THE FOLLOWING

1/4& 1/3& 2/3& 1/5& 1/7 ??

THE APPROACH IS AS PER FOLLOWS:

lWrite out each UNIQUE Denominator as per follows:

4: 2 * 2

3: 1 * 3

5: 1 * 5

7: 1* 7

Then, you multiply each unique number across the population. So as per follows

1*2*2*3*5*7

This equals 420 which is what we concluded earlier in Tuition

ANOTHER EXAMPLE:

Please see below:

FINDING THE LOWEST COMMON DENOMINATOR:

3/24 & 5/116

STEP 1: Write out the factors to derive the denominator

STEP 2: Keep breaking out numbers that are NOT Prime Numbers. On the left hand side, that would be 8

STEP 3: List out the Prime Numbers and these will derive the initial denominator (eg in the case of 24, the prime numbers from the tree are 3*2*2*2)