Question

3 1/2, 6, 7 1/2 If all the multiples of these numbers are taken, find the smallest number common to all?​

Answer 1

Answer:

210

Step-by-step explanation:

the smallest number common to all is LCM

3 1/2= 7/2; 6; 7 1/2=15/2

therefore the answer is the LCM of 7/2, 6, 15/2 i.e. 7/2, 12/2, 15/2

therefore the required answer is (LCM of 7,12,15)/2

LCM of 7,12,15 is 420

LCM of 7/2; 6, 15/2 is 420/2 = 210