find the lcm of 18 21 27 30
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Answered by
0
Answer:
1890
Step-by-step explanation:
lcm of 18 21 27 30
lcm=18,21,27,30/3=
6,7,9,10/2=
3,7,9,5/3=
1,7,3,5/5=
1,7,3,1/7=
1,1,3,1/3=
1,1,1,1
therefore lcm= 3*2*3*5*7*3=1890
i hope it helps
Answered by
0
Using Prime Factorisation Method
____________________________
18 = 2×3×3
21 = 3×7
27 = 3×3×3
30 = 2×3×5
LCM of 18, 21, 27 and 30 = 2×3×3×3×5×7=1890
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