Question

Find the HCF and the LCM of 120 and 75 using the common division method: *

Answer 1

HCF

Step 1 find HCF.

HCF

3 120 ,75

5 60,25

12,5

common factors are 3 and 5

HCF=product of common factors.

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Step 2 multiply the common numbers

=2 x 5

ans =10

therefore HCF=10

LCM

2 120 , 75

5 60, 25

5 12,5

2 6,5

2 3,5

3 1,5

5 1,1

lcm=2x5x5x2x2x3x5

lcm=3000

Answer 2

Answer:

15

Step-by-step explanation:

HCF is when you find the highest number common to two or more numbers

LCM is when you find the lowest common multiple in two or more numbers