What is the LCM of 5/9, 2/15, 7/12, 4/21 ?

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15 Mar 2022 LCM & HCF

What is the LCM of 5/9, 2/15, 7/12, 4/21 ?

OPtion

1) 3/70
2) 14/3
3) 7/3
4) 3/35
5) 70/3
6) 7/30
7) 35/3
8) 140/3
9) 98/3
10) None of these

Solution

LCM (5/9, 2/15, 7/12, 4/21) = LCM (5, 2, 7, 4) / HCF (9, 15, 12, 21) = 140/3
Correct Option 8)

Correct Option: 8 Best Solution (3)